Commit Graph

1089400 Commits

Author SHA1 Message Date
Pavel Begunkov e941976659 io_uring: use right issue_flags for splice/tee
Pass right issue_flags into into io_file_get_fixed() instead of
IO_URING_F_UNLOCKED. It's probably not a problem at the moment but let's
do it safer.

Fixes: 6bf9c47a39 ("io_uring: defer file assignment")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7d242daa9df5d776907686977cd29fbceb4a2d8d.1649862516.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-04-13 10:25:36 -06:00
Lin Ma ef27324e2c nfc: nci: add flush_workqueue to prevent uaf
Our detector found a concurrent use-after-free bug when detaching an
NCI device. The main reason for this bug is the unexpected scheduling
between the used delayed mechanism (timer and workqueue).

The race can be demonstrated below:

Thread-1                           Thread-2
                                 | nci_dev_up()
                                 |   nci_open_device()
                                 |     __nci_request(nci_reset_req)
                                 |       nci_send_cmd
                                 |         queue_work(cmd_work)
nci_unregister_device()          |
  nci_close_device()             | ...
    del_timer_sync(cmd_timer)[1] |
...                              | Worker
nci_free_device()                | nci_cmd_work()
  kfree(ndev)[3]                 |   mod_timer(cmd_timer)[2]

In short, the cleanup routine thought that the cmd_timer has already
been detached by [1] but the mod_timer can re-attach the timer [2], even
it is already released [3], resulting in UAF.

This UAF is easy to trigger, crash trace by POC is like below

[   66.703713] ==================================================================
[   66.703974] BUG: KASAN: use-after-free in enqueue_timer+0x448/0x490
[   66.703974] Write of size 8 at addr ffff888009fb7058 by task kworker/u4:1/33
[   66.703974]
[   66.703974] CPU: 1 PID: 33 Comm: kworker/u4:1 Not tainted 5.18.0-rc2 #5
[   66.703974] Workqueue: nfc2_nci_cmd_wq nci_cmd_work
[   66.703974] Call Trace:
[   66.703974]  <TASK>
[   66.703974]  dump_stack_lvl+0x57/0x7d
[   66.703974]  print_report.cold+0x5e/0x5db
[   66.703974]  ? enqueue_timer+0x448/0x490
[   66.703974]  kasan_report+0xbe/0x1c0
[   66.703974]  ? enqueue_timer+0x448/0x490
[   66.703974]  enqueue_timer+0x448/0x490
[   66.703974]  __mod_timer+0x5e6/0xb80
[   66.703974]  ? mark_held_locks+0x9e/0xe0
[   66.703974]  ? try_to_del_timer_sync+0xf0/0xf0
[   66.703974]  ? lockdep_hardirqs_on_prepare+0x17b/0x410
[   66.703974]  ? queue_work_on+0x61/0x80
[   66.703974]  ? lockdep_hardirqs_on+0xbf/0x130
[   66.703974]  process_one_work+0x8bb/0x1510
[   66.703974]  ? lockdep_hardirqs_on_prepare+0x410/0x410
[   66.703974]  ? pwq_dec_nr_in_flight+0x230/0x230
[   66.703974]  ? rwlock_bug.part.0+0x90/0x90
[   66.703974]  ? _raw_spin_lock_irq+0x41/0x50
[   66.703974]  worker_thread+0x575/0x1190
[   66.703974]  ? process_one_work+0x1510/0x1510
[   66.703974]  kthread+0x2a0/0x340
[   66.703974]  ? kthread_complete_and_exit+0x20/0x20
[   66.703974]  ret_from_fork+0x22/0x30
[   66.703974]  </TASK>
[   66.703974]
[   66.703974] Allocated by task 267:
[   66.703974]  kasan_save_stack+0x1e/0x40
[   66.703974]  __kasan_kmalloc+0x81/0xa0
[   66.703974]  nci_allocate_device+0xd3/0x390
[   66.703974]  nfcmrvl_nci_register_dev+0x183/0x2c0
[   66.703974]  nfcmrvl_nci_uart_open+0xf2/0x1dd
[   66.703974]  nci_uart_tty_ioctl+0x2c3/0x4a0
[   66.703974]  tty_ioctl+0x764/0x1310
[   66.703974]  __x64_sys_ioctl+0x122/0x190
[   66.703974]  do_syscall_64+0x3b/0x90
[   66.703974]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   66.703974]
[   66.703974] Freed by task 406:
[   66.703974]  kasan_save_stack+0x1e/0x40
[   66.703974]  kasan_set_track+0x21/0x30
[   66.703974]  kasan_set_free_info+0x20/0x30
[   66.703974]  __kasan_slab_free+0x108/0x170
[   66.703974]  kfree+0xb0/0x330
[   66.703974]  nfcmrvl_nci_unregister_dev+0x90/0xd0
[   66.703974]  nci_uart_tty_close+0xdf/0x180
[   66.703974]  tty_ldisc_kill+0x73/0x110
[   66.703974]  tty_ldisc_hangup+0x281/0x5b0
[   66.703974]  __tty_hangup.part.0+0x431/0x890
[   66.703974]  tty_release+0x3a8/0xc80
[   66.703974]  __fput+0x1f0/0x8c0
[   66.703974]  task_work_run+0xc9/0x170
[   66.703974]  exit_to_user_mode_prepare+0x194/0x1a0
[   66.703974]  syscall_exit_to_user_mode+0x19/0x50
[   66.703974]  do_syscall_64+0x48/0x90
[   66.703974]  entry_SYSCALL_64_after_hwframe+0x44/0xae

To fix the UAF, this patch adds flush_workqueue() to ensure the
nci_cmd_work is finished before the following del_timer_sync.
This combination will promise the timer is actually detached.

Fixes: 6a2968aaf5 ("NFC: basic NCI protocol implementation")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-13 14:44:44 +01:00
Alvin Šipraga 8e925de60d net: dsa: realtek: don't parse compatible string for RTL8366S
This switch is not even supported, but if someone were to actually put
this compatible string "realtek,rtl8366s" in their device tree, they
would be greeted with a kernel panic because the probe function would
dereference NULL. So let's just remove it.

Link: https://lore.kernel.org/all/CACRpkdYdKZs0WExXc3=0yPNOwP+oOV60HRz7SRoGjZvYHaT=1g@mail.gmail.com/
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-13 14:40:59 +01:00
Alvin Šipraga 2511e0c877 net: dsa: realtek: fix Kconfig to assure consistent driver linkage
The kernel test robot reported a build failure:

or1k-linux-ld: drivers/net/dsa/realtek/realtek-smi.o:(.rodata+0x16c): undefined reference to `rtl8366rb_variant'

... with the following build configuration:

CONFIG_NET_DSA_REALTEK=y
CONFIG_NET_DSA_REALTEK_SMI=y
CONFIG_NET_DSA_REALTEK_RTL8365MB=y
CONFIG_NET_DSA_REALTEK_RTL8366RB=m

The problem here is that the realtek-smi interface driver gets built-in,
while the rtl8366rb switch subdriver gets built as a module, hence the
symbol rtl8366rb_variant is not reachable when defining the OF device
table in the interface driver.

The Kconfig dependencies don't help in this scenario because they just
say that the subdriver(s) depend on at least one interface driver. In
fact, the subdrivers don't depend on the interface drivers at all, and
can even be built even in their absence. Somewhat strangely, the
interface drivers can also be built in the absence of any subdriver,
BUT, if a subdriver IS enabled, then it must be reachable according to
the linkage of the interface driver: effectively what the IS_REACHABLE()
macro achieves. If it is not reachable, the above kind of linker error
will be observed.

Rather than papering over the above build error by simply using
IS_REACHABLE(), we can do a little better and admit that it is actually
the interface drivers that have a dependency on the subdrivers. So this
patch does exactly that. Specifically, we ensure that:

1. The interface drivers' Kconfig symbols must have a value no greater
   than the value of any subdriver Kconfig symbols.

2. The subdrivers should by default enable both interface drivers, since
   most users probably want at least one of them; those interface
   drivers can be explicitly disabled however.

What this doesn't do is prevent a user from building only a subdriver,
without any interface driver. To that end, add an additional line of
help in the menu to guide users in the right direction.

Link: https://lore.kernel.org/all/202204110757.XIafvVnj-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Fixes: aac9400106 ("net: dsa: realtek: add new mdio interface for drivers")
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-13 14:30:31 +01:00
David S. Miller dad32cfeed wireless fixes for v5.18
First set of fixes for v5.18. Maintainers file updates, two
 compilation warning fixes, one revert for ath11k and smaller fixes to
 drivers and stack. All the usual stuff.
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Merge tag 'wireless-2022-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

Kalle Valo says:

====================
wireless fixes for v5.18

First set of fixes for v5.18. Maintainers file updates, two
compilation warning fixes, one revert for ath11k and smaller fixes to
drivers and stack. All the usual stuff.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-13 13:13:34 +01:00
Jason A. Donenfeld b0c3e796f2 random: make random_get_entropy() return an unsigned long
Some implementations were returning type `unsigned long`, while others
that fell back to get_cycles() were implicitly returning a `cycles_t` or
an untyped constant int literal. That makes for weird and confusing
code, and basically all code in the kernel already handled it like it
was an `unsigned long`. I recently tried to handle it as the largest
type it could be, a `cycles_t`, but doing so doesn't really help with
much.

Instead let's just make random_get_entropy() return an unsigned long all
the time. This also matches the commonly used `arch_get_random_long()`
function, so now RDRAND and RDTSC return the same sized integer, which
means one can fallback to the other more gracefully.

Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Theodore Ts'o <tytso@mit.edu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-04-13 13:58:57 +02:00
Jason A. Donenfeld 5209aed513 random: allow partial reads if later user copies fail
Rather than failing entirely if a copy_to_user() fails at some point,
instead we should return a partial read for the amount that succeeded
prior, unless none succeeded at all, in which case we return -EFAULT as
before.

This makes it consistent with other reader interfaces. For example, the
following snippet for /dev/zero outputs "4" followed by "1":

  int fd;
  void *x = mmap(NULL, 4096, PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
  assert(x != MAP_FAILED);
  fd = open("/dev/zero", O_RDONLY);
  assert(fd >= 0);
  printf("%zd\n", read(fd, x, 4));
  printf("%zd\n", read(fd, x + 4095, 4));
  close(fd);

This brings that same standard behavior to the various RNG reader
interfaces.

While we're at it, we can streamline the loop logic a little bit.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-04-13 13:58:57 +02:00
Dylan Hung 3d25045245 net: ftgmac100: access hardware register after clock ready
AST2600 MAC register 0x58 is writable only when the MAC clock is
enabled.  Usually, the MAC clock is enabled by the bootloader so
register 0x58 is set normally when the bootloader is involved.  To make
ast2600 ftgmac100 work without the bootloader, postpone the register
write until the clock is ready.

Fixes: 137d23cea1 ("net: ftgmac100: Fix Aspeed ast2600 TX hang issue")
Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-13 12:43:55 +01:00
Vladimir Oltean 762c2998c9 Revert "net: dsa: setup master before ports"
This reverts commit 11fd667dac.

dsa_slave_change_mtu() updates the MTU of the DSA master and of the
associated CPU port, but only if it detects a change to the master MTU.

The blamed commit in the Fixes: tag below addressed a regression where
dsa_slave_change_mtu() would return early and not do anything due to
ds->ops->port_change_mtu() not being implemented.

However, that commit also had the effect that the master MTU got set up
to the correct value by dsa_master_setup(), but the associated CPU port's
MTU did not get updated. This causes breakage for drivers that rely on
the ->port_change_mtu() DSA call to account for the tagging overhead on
the CPU port, and don't set up the initial MTU during the setup phase.

Things actually worked before because they were in a fragile equilibrium
where dsa_slave_change_mtu() was called before dsa_master_setup() was.
So dsa_slave_change_mtu() could actually detect a change and update the
CPU port MTU too.

Restore the code to the way things used to work by reverting the reorder
of dsa_tree_setup_master() and dsa_tree_setup_ports(). That change did
not have a concrete motivation going for it anyway, it just looked
better.

Fixes: 066dfc4290 ("Revert "net: dsa: stop updating master MTU from master.c"")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-13 12:38:06 +01:00
Martin Willi e16b859872 macvlan: Fix leaking skb in source mode with nodst option
The MACVLAN receive handler clones skbs to all matching source MACVLAN
interfaces, before it passes the packet along to match on destination
based MACVLANs.

When using the MACVLAN nodst mode, passing the packet to destination based
MACVLANs is omitted and the handler returns with RX_HANDLER_CONSUMED.
However, the passed skb is not freed, leaking for any packet processed
with the nodst option.

Properly free the skb when consuming packets to fix that leak.

Fixes: 427f0c8c19 ("macvlan: Add nodst option to macvlan type source")
Signed-off-by: Martin Willi <martin@strongswan.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-13 12:25:02 +01:00
Yassine Oudjana 581045ed5c power: supply: Reset err after not finding static battery
Otherwise power_supply_get_battery_info always returns -ENODEV
on devices that do not have a static battery, even when a simple
battery is found.

Fixes: c8aee3f41c ("power: supply: Static data for Samsung batteries")
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-04-13 12:05:22 +02:00
Linus Walleij 5c7d28c6f6 power: supply: samsung-sdi-battery: Add missing charge restart voltages
Two of the batteries were missing charging restart voltages,
meaning they can drain if the algorithm relies on restarting
charging at this voltage. Fix it up.

Fixes: c8aee3f41c ("power: supply: Static data for Samsung batteries")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-04-13 12:05:22 +02:00
Adrian Hunter f034fc50d3 perf tools: Fix misleading add event PMU debug message
Fix incorrect debug message:

   Attempting to add event pmu 'intel_pt' with '' that may result in
   non-fatal errors

which always appears with perf record -vv and intel_pt e.g.

    perf record -vv -e intel_pt//u uname

The message is incorrect because there will never be non-fatal errors.

Suppress the message if the PMU is 'selectable' i.e. meant to be
selected directly as an event.

Fixes: 4ac22b484d ("perf parse-events: Make add PMU verbose output clearer")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20220411061758.2458417-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-13 07:00:31 -03:00
Takashi Iwai 24d0c9f0e7 ALSA: usb-audio: Limit max buffer and period sizes per time
In the previous fix, we increased the max buffer bytes from 1MB to 4MB
so that we can use bigger buffers for the modern HiFi devices with
higher rates, more channels and wider formats.  OTOH, extending this
has a concern that too big buffer is allowed for the lower rates, less
channels and narrower formats; when an application tries to allocate
as big buffer as possible, it'll lead to unexpectedly too huge size.

Also, we had a problem about the inconsistent max buffer and period
bytes for the implicit feedback mode when both streams have different
channels.  This was fixed by the (relatively complex) patch to reduce
the max buffer and period bytes accordingly.

This is an alternative fix for those, a patch to kill two birds with
one stone (*): instead of increasing the max buffer bytes blindly and
applying the reduction per channels, we simply use the hw constraints
for the buffer and period "time".  Meanwhile the max buffer and period
bytes are set unlimited instead.

Since the inconsistency of buffer (and period) bytes comes from the
difference of the channels in the tied streams, as long as we care
only about the buffer (and period) time, it doesn't matter; the buffer
time is same for different channels, although we still allow higher
buffer size.  Similarly, this will allow more buffer bytes for HiFi
devices while it also keeps the reasonable size for the legacy
devices, too.

As of this patch, the max period and buffer time are set to 1 and 2
seconds, which should be large enough for all possible use cases.

(*) No animals were harmed in the making of this patch.

Fixes: 98c27add5d ("ALSA: usb-audio: Cap upper limits of buffer/period bytes for implicit fb")
Fixes: fee2ec8cce ("ALSA: usb-audio: Increase max buffer size")
Link: https://lore.kernel.org/r/20220412130740.18933-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-13 09:10:56 +02:00
Takashi Iwai 925ca893b4 ALSA: memalloc: Add fallback SG-buffer allocations for x86
The recent change for memory allocator replaced the SG-buffer handling
helper for x86 with the standard non-contiguous page handler.  This
works for most cases, but there is a corner case I obviously
overlooked, namely, the fallback of non-contiguous handler without
IOMMU.  When the system runs without IOMMU, the core handler tries to
use the continuous pages with a single SGL entry.  It works nicely for
most cases, but when the system memory gets fragmented, the large
allocation may fail frequently.

Ideally the non-contig handler could deal with the proper SG pages,
it's cumbersome to extend for now.  As a workaround, here we add new
types for (minimalistic) SG allocations, instead, so that the
allocator falls back to those types automatically when the allocation
with the standard API failed.

BTW, one better (but pretty minor) improvement from the previous
SG-buffer code is that this provides the proper mmap support without
the PCM's page fault handling.

Fixes: 2c95b92ecd ("ALSA: memalloc: Unify x86 SG-buffer handling (take#3)")
BugLink: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/2272
BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1198248
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220413054808.7547-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-13 07:48:53 +02:00
Linus Torvalds a19944809f hardening fixes for v5.18-rc3
- latent_entropy: Use /dev/urandom instead of small GCC seed (Jason Donenfeld)
 
 - uapi/stddef.h: add missed include guards (Tadeusz Struk)
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Merge tag 'hardening-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening fixes from Kees Cook:

 - latent_entropy: Use /dev/urandom instead of small GCC seed (Jason
   Donenfeld)

 - uapi/stddef.h: add missed include guards (Tadeusz Struk)

* tag 'hardening-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: latent_entropy: use /dev/urandom
  uapi/linux/stddef.h: Add include guards
2022-04-12 14:29:40 -10:00
Linus Torvalds c1488c9751 NFSD bug fixes for 5.18-rc:
- Fix a write performance regression
 - Fix crashes during request deferral on RDMA transports
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Merge tag 'nfsd-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:

 - Fix a write performance regression

 - Fix crashes during request deferral on RDMA transports

* tag 'nfsd-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  SUNRPC: Fix the svc_deferred_event trace class
  SUNRPC: Fix NFSD's request deferral on RDMA transports
  nfsd: Clean up nfsd_file_put()
  nfsd: Fix a write performance regression
  SUNRPC: Return true/false (not 1/0) from bool functions
2022-04-12 14:23:19 -10:00
Linus Torvalds 453096eb04 x86:
* Miscellaneous bugfixes
 
 * A small cleanup for the new workqueue code
 
 * Documentation syntax fix
 
 RISC-V:
 
 * Remove hgatp zeroing in kvm_arch_vcpu_put()
 
 * Fix alignment of the guest_hang() in KVM selftest
 
 * Fix PTE A and D bits in KVM selftest
 
 * Missing #include in vcpu_fp.c
 
 ARM:
 
 * Some PSCI fixes after introducing PSCIv1.1 and SYSTEM_RESET2
 
 * Fix the MMU write-lock not being taken on THP split
 
 * Fix mixed-width VM handling
 
 * Fix potential UAF when debugfs registration fails
 
 * Various selftest updates for all of the above
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "x86:

   - Miscellaneous bugfixes

   - A small cleanup for the new workqueue code

   - Documentation syntax fix

  RISC-V:

   - Remove hgatp zeroing in kvm_arch_vcpu_put()

   - Fix alignment of the guest_hang() in KVM selftest

   - Fix PTE A and D bits in KVM selftest

   - Missing #include in vcpu_fp.c

  ARM:

   - Some PSCI fixes after introducing PSCIv1.1 and SYSTEM_RESET2

   - Fix the MMU write-lock not being taken on THP split

   - Fix mixed-width VM handling

   - Fix potential UAF when debugfs registration fails

   - Various selftest updates for all of the above"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (24 commits)
  KVM: x86: hyper-v: Avoid writing to TSC page without an active vCPU
  KVM: SVM: Do not activate AVIC for SEV-enabled guest
  Documentation: KVM: Add SPDX-License-Identifier tag
  selftests: kvm: add tsc_scaling_sync to .gitignore
  RISC-V: KVM: include missing hwcap.h into vcpu_fp
  KVM: selftests: riscv: Fix alignment of the guest_hang() function
  KVM: selftests: riscv: Set PTE A and D bits in VS-stage page table
  RISC-V: KVM: Don't clear hgatp CSR in kvm_arch_vcpu_put()
  selftests: KVM: Free the GIC FD when cleaning up in arch_timer
  selftests: KVM: Don't leak GIC FD across dirty log test iterations
  KVM: Don't create VM debugfs files outside of the VM directory
  KVM: selftests: get-reg-list: Add KVM_REG_ARM_FW_REG(3)
  KVM: avoid NULL pointer dereference in kvm_dirty_ring_push
  KVM: arm64: selftests: Introduce vcpu_width_config
  KVM: arm64: mixed-width check should be skipped for uninitialized vCPUs
  KVM: arm64: vgic: Remove unnecessary type castings
  KVM: arm64: Don't split hugepages outside of MMU write lock
  KVM: arm64: Drop unneeded minor version check from PSCI v1.x handler
  KVM: arm64: Actually prevent SMC64 SYSTEM_RESET2 from AArch32
  KVM: arm64: Generally disallow SMC64 for AArch32 guests
  ...
2022-04-12 14:16:33 -10:00
Linus Torvalds 7083b89ef3 media fixes for v5.18-rc2
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Merge tag 'media/v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - a regression fix for si2157

 - a Kconfig dependency fix for imx-mipi-csis

 - fix the rockchip/rga driver probing logic

* tag 'media/v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: si2157: unknown chip version Si2147-A30 ROM 0x50
  media: platform: imx-mipi-csis: Add dependency on VIDEO_DEV
  media: rockchip/rga: do proper error checking in probe
2022-04-12 14:08:43 -10:00
Mikulas Patocka 932aba1e16 stat: fix inconsistency between struct stat and struct compat_stat
struct stat (defined in arch/x86/include/uapi/asm/stat.h) has 32-bit
st_dev and st_rdev; struct compat_stat (defined in
arch/x86/include/asm/compat.h) has 16-bit st_dev and st_rdev followed by
a 16-bit padding.

This patch fixes struct compat_stat to match struct stat.

[ Historical note: the old x86 'struct stat' did have that 16-bit field
  that the compat layer had kept around, but it was changes back in 2003
  by "struct stat - support larger dev_t":

    https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/?id=e95b2065677fe32512a597a79db94b77b90c968d

  and back in those days, the x86_64 port was still new, and separate
  from the i386 code, and had already picked up the old version with a
  16-bit st_dev field ]

Note that we can't change compat_dev_t because it is used by
compat_loop_info.

Also, if the st_dev and st_rdev values are 32-bit, we don't have to use
old_valid_dev to test if the value fits into them.  This fixes
-EOVERFLOW on filesystems that are on NVMe because NVMe uses the major
number 259.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-04-12 13:35:08 -10:00
Alexander Lobakin b97687527b asm-generic: fix __get_unaligned_be48() on 32 bit platforms
While testing the new macros for working with 48 bit containers,
I faced a weird problem:

32 + 16: 0x2ef6e8da 0x79e60000
48: 0xffffe8da + 0x79e60000

All the bits starting from the 32nd were getting 1d in 9/10 cases.
The debug showed:

p[0]: 0x00002e0000000000
p[1]: 0x00002ef600000000
p[2]: 0xffffffffe8000000
p[3]: 0xffffffffe8da0000
p[4]: 0xffffffffe8da7900
p[5]: 0xffffffffe8da79e6

that the value becomes a garbage after the third OR, i.e. on
`p[2] << 24`.
When the 31st bit is 1 and there's no explicit cast to an unsigned,
it's being considered as a signed int and getting sign-extended on
OR, so `e8000000` becomes `ffffffffe8000000` and messes up the
result.
Cast the @p[2] to u64 as well to avoid this. Now:

32 + 16: 0x7ef6a490 0xddc10000
48: 0x7ef6a490 + 0xddc10000

p[0]: 0x00007e0000000000
p[1]: 0x00007ef600000000
p[2]: 0x00007ef6a4000000
p[3]: 0x00007ef6a4900000
p[4]: 0x00007ef6a490dd00
p[5]: 0x00007ef6a490ddc1

Fixes: c2ea5fcf53 ("asm-generic: introduce be48 unaligned accessors")
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Link: https://lore.kernel.org/r/20220412215220.75677-1-alobakin@pm.me
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-04-12 16:31:38 -06:00
Athira Rajeev ce64763c63 testing/selftests/mqueue: Fix mq_perf_tests to free the allocated cpu set
The selftest "mqueue/mq_perf_tests.c" use CPU_ALLOC to allocate
CPU set. This cpu set is used further in pthread_attr_setaffinity_np
and by pthread_create in the code. But in current code, allocated
cpu set is not freed.

Fix this issue by adding CPU_FREE in the "shutdown" function which
is called in most of the error/exit path for the cleanup. There are
few error paths which exit without using shutdown. Add a common goto
error path with CPU_FREE for these cases.

Fixes: 7820b0715b ("tools/selftests: add mq_perf_tests")
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2022-04-12 13:54:49 -06:00
Jason A. Donenfeld c40160f299 gcc-plugins: latent_entropy: use /dev/urandom
While the latent entropy plugin mostly doesn't derive entropy from
get_random_const() for measuring the call graph, when __latent_entropy is
applied to a constant, then it's initialized statically to output from
get_random_const(). In that case, this data is derived from a 64-bit
seed, which means a buffer of 512 bits doesn't really have that amount
of compile-time entropy.

This patch fixes that shortcoming by just buffering chunks of
/dev/urandom output and doling it out as requested.

At the same time, it's important that we don't break the use of
-frandom-seed, for people who want the runtime benefits of the latent
entropy plugin, while still having compile-time determinism. In that
case, we detect whether gcc's set_random_seed() has been called by
making a call to get_random_seed(noinit=true) in the plugin init
function, which is called after set_random_seed() is called but before
anything that calls get_random_seed(noinit=false), and seeing if it's
zero or not. If it's not zero, we're in deterministic mode, and so we
just generate numbers with a basic xorshift prng.

Note that we don't detect if -frandom-seed is being used using the
documented local_tick variable, because it's assigned via:
   local_tick = (unsigned) tv.tv_sec * 1000 + tv.tv_usec / 1000;
which may well overflow and become -1 on its own, and so isn't
reliable: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105171

[kees: The 256 byte rnd_buf size was chosen based on average (250),
 median (64), and std deviation (575) bytes of used entropy for a
 defconfig x86_64 build]

Fixes: 38addce8b6 ("gcc-plugins: Add latent_entropy plugin")
Cc: stable@vger.kernel.org
Cc: PaX Team <pageexec@freemail.hu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220405222815.21155-1-Jason@zx2c4.com
2022-04-12 11:31:40 -07:00
Jakub Kicinski 625e8cb8e0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

1) Fix cgroupv2 from the input path, from Florian Westphal.

2) Fix incorrect return value of nft_parse_register(), from Antoine Tenart.

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nf_tables: nft_parse_register can return a negative value
  netfilter: nft_socket: make cgroup match work in input too
====================

Link: https://lore.kernel.org/r/20220412094246.448055-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-04-12 09:48:53 -07:00
Dylan Yudaken d2347b9695 io_uring: verify pad field is 0 in io_get_ext_arg
Ensure that only 0 is passed for pad here.

Fixes: c73ebb685f ("io_uring: add timeout support for io_uring_enter()")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220412163042.2788062-5-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-04-12 10:46:54 -06:00
Dylan Yudaken 6fb53cf8ff io_uring: verify resv is 0 in ringfd register/unregister
Only allow resv field to be 0 in struct io_uring_rsrc_update user
arguments.

Fixes: e7a6c00dc7 ("io_uring: add support for registering ring file descriptors")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220412163042.2788062-4-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-04-12 10:46:54 -06:00
Dylan Yudaken d8a3ba9c14 io_uring: verify that resv2 is 0 in io_uring_rsrc_update2
Verify that the user does not pass in anything but 0 for this field.

Fixes: 992da01aa9 ("io_uring: change registration/upd/rsrc tagging ABI")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220412163042.2788062-3-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-04-12 10:46:54 -06:00
Dylan Yudaken 565c5e616e io_uring: move io_uring_rsrc_update2 validation
Move validation to be more consistently straight after
copy_from_user. This is already done in io_register_rsrc_update and so
this removes that redundant check.

Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220412163042.2788062-2-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-04-12 10:46:54 -06:00
Takashi Iwai f20ae5074d ALSA: nm256: Don't call card private_free at probe error path
The card destructor of nm256 driver does merely stopping the running
streams, and it's superfluous for the probe error handling.  Moreover,
calling this via the previous devres change would lead to another
problem due to the reverse call order.

This patch moves the setup of the private_free callback after the card
registration, so that it can be used only after fully set up.

Fixes: c19935f047 ("ALSA: nm256: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-40-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:44 +02:00
Takashi Iwai 4fb2719087 ALSA: mtpav: Don't call card private_free at probe error path
The card destructor of nm256 driver does merely stopping the running
timer, and it's superfluous for the probe error handling.  Moreover,
calling this via the previous devres change would lead to another
problem due to the reverse call order.

This patch moves the setup of the private_free callback after the card
registration, so that it can be used only after fully set up.

Fixes: aa92050f10 ("ALSA: mtpav: Allocate resources with device-managed APIs")
Link: https://lore.kernel.org/r/20220412102636.16000-39-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:43 +02:00
Takashi Iwai b2aa4f8069 ALSA: rme9652: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() manually on the error
from the probe callback.

Fixes: b1002b2d41 ("ALSA: rme9652: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-38-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:43 +02:00
Takashi Iwai eab521aebc ALSA: hdspm: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() manually on the error
from the probe callback.

Fixes: 0195ca5fd1 ("ALSA: hdspm: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-37-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:42 +02:00
Takashi Iwai e2263f0bf7 ALSA: hdsp: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() manually on the error
from the probe callback.

Fixes: d136b8e54f ("ALSA: hdsp: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-36-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:41 +02:00
Takashi Iwai 6ebc16e206 ALSA: oxygen: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 596ae97ab0 ("ALSA: oxygen: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-35-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:40 +02:00
Takashi Iwai 60797a21dd ALSA: lx6464es: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() manually on the error
from the probe callback.

Fixes: 6f16c19b11 ("ALSA: lx6464es: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-34-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:40 +02:00
Takashi Iwai a59396b1c1 ALSA: cmipci: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() manually on the error
from the probe callback.

Fixes: 87e082ad84 ("ALSA: cmipci: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-33-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:39 +02:00
Takashi Iwai bf4067e8a1 ALSA: aw2: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() manually on the error
from the probe callback.

Fixes: 33631012cd ("ALSA: aw2: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-32-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:38 +02:00
Takashi Iwai ab8bce9da6 ALSA: als300: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() manually on the error
from the probe callback.

Fixes: 21a9314cf9 ("ALSA: als300: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-31-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:38 +02:00
Takashi Iwai d04e84b981 ALSA: lola: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 098fe3d6e7 ("ALSA: lola: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-30-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:37 +02:00
Takashi Iwai f043815527 ALSA: bt87x: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 9e80ed64a0 ("ALSA: bt87x: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-29-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:36 +02:00
Takashi Iwai 2236a3243f ALSA: sis7019: Fix the missing error handling
The previous cleanup with devres forgot to replace the snd_card_free()
call with the devm version.  Moreover, it still needs the manual call
of snd_card_free() at the probe error path, otherwise the reverse
order of the releases may happen.  This patch addresses those issues.

Fixes: 499ddc1639 ("ALSA: sis7019: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-28-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:35 +02:00
Takashi Iwai 5e154dfb4f ALSA: intel_hdmi: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 854577ac2a ("ALSA: x86: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-27-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:35 +02:00
Takashi Iwai 27a0963f9c ALSA: via82xx: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: afaf99751d ("ALSA: via82xx: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-26-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:34 +02:00
Takashi Iwai b087a381d7 ALSA: sonicvibes: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 2ca6cbde6a ("ALSA: sonicvibes: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-25-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:33 +02:00
Takashi Iwai 93b884f8d8 ALSA: rme96: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: df06df7cc9 ("ALSA: rme96: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-24-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:32 +02:00
Takashi Iwai 55d2d046b2 ALSA: rme32: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 102e6156de ("ALSA: rme32: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-23-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:32 +02:00
Takashi Iwai 348f08de55 ALSA: riptide: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 546c201a89 ("ALSA: riptide: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-22-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:31 +02:00
Takashi Iwai ae86bf5c2a ALSA: maestro3: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 5c0939253c ("ALSA: maestro3: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-21-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:30 +02:00
Takashi Iwai c01b723a56 ALSA: korg1212: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: b5cde369b6 ("ALSA: korg1212: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-20-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:30 +02:00
Takashi Iwai 71b21f5f89 ALSA: intel8x0: Fix the missing snd_card_free() call at probe error
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 7835e0901e ("ALSA: intel8x0: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-19-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:29 +02:00