Commit Graph

230 Commits

Author SHA1 Message Date
Bill Pemberton f307da94db staging: usbip: remove use of __devexit_p
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Matt Mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21 15:04:59 -08:00
Harvey Yang a6bb87522f usb: usbip: userspace: remove the port state file when detaching port.
with the last detached port state file remaining, usbip reports error on
attaching. So clean up the state files on detaching.

Signed-off-by: Harvey Yang <harvey.huawei.yang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-15 17:47:29 -08:00
Harvey Yang 695bcb1c0a staging: usbip: put usb_device and kill event handler thread in error cleanups.
If probe returns with error, the kthread is still alive even when all
usbip modules unloaded. So do cleanups in error handler.

Signed-off-by: harvey.yang <harvey.huawei.yang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-13 13:08:48 -08:00
Bernard Blackham 9e1b6cb9dc staging: usbip: Avoid superfluous set HC_STATE_RUNNING in vhci_start
HC_STATE_RUNNING is already set by the usb core.

Signed-off-by: Bernard Blackham <b-linuxgit@largestprime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-22 13:38:40 -07:00
Bernard Blackham 3d0a2a22c9 staging: usbip: Don't leak struct file.
usbip takes a reference on a struct file which is passed in via
sysfs.  Previously, this reference was never cleaned up, although
the socket it referred to was.

This patch drops the corresponding reference (found with the
socket's ->file backpointer) instead of just closing the socket.

Signed-off-by: Bernard Blackham <b-linuxgit@largestprime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-22 13:38:04 -07:00
Bart Westgeest c7f0089931 staging: usbip: cleanup of comments
Removed commented-out code, obsolete comments, and fixed comment typos.

Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-22 13:36:29 -07:00
Bart Westgeest 20960faca5 staging: usbip: make rh_port_disconnect static
Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-22 13:36:28 -07:00
Bart Westgeest 36ac9b055f staging: usbip: replaced pointer arithmetic, and strongly type function return.
Replaced pointer arithmetic by using array indexing, and changed
function return type for usbip_alloc_iso_desc_pdu from 'void*' to
'struct usbip_iso_packet_descriptor'.

Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-22 13:36:28 -07:00
Linus Torvalds d9a807461f USB merge for 3.7-rc1
Here is the big USB pull request for 3.7-rc1
 
 There are lots of gadget driver changes (including copying a bunch of
 files into the drivers/staging/ccg/ directory so that the other gadget
 drivers can be fixed up properly without breaking that driver), and we
 remove the old obsolete ub.c driver from the tree.  There are also the
 usual XHCI set of updates, and other various driver changes and updates.
 We also are trying hard to remove the old dbg() macro, but the final
 bits of that removal will be coming in through the networking tree
 before we can delete it for good.
 
 All of these patches have been in the linux-next tree.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB changes from Greg Kroah-Hartman:
 "Here is the big USB pull request for 3.7-rc1

  There are lots of gadget driver changes (including copying a bunch of
  files into the drivers/staging/ccg/ directory so that the other gadget
  drivers can be fixed up properly without breaking that driver), and we
  remove the old obsolete ub.c driver from the tree.

  There are also the usual XHCI set of updates, and other various driver
  changes and updates.  We also are trying hard to remove the old dbg()
  macro, but the final bits of that removal will be coming in through
  the networking tree before we can delete it for good.

  All of these patches have been in the linux-next tree.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fix up several annoying - but fairly mindless - conflicts due to the
termios structure having moved into the tty device, and often clashing
with dbg -> dev_dbg conversion.

* tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (339 commits)
  USB: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc
  USB: uas: fix gcc warning
  USB: uas: fix locking
  USB: Fix race condition when removing host controllers
  USB: uas: add locking
  USB: uas: fix abort
  USB: uas: remove aborted field, replace with status bit.
  USB: uas: fix task management
  USB: uas: keep track of command urbs
  xhci: Intel Panther Point BEI quirk.
  powerpc/usb: remove checking PHY_CLK_VALID for UTMI PHY
  USB: ftdi_sio: add TIAO USB Multi-Protocol Adapter (TUMPA) support
  Revert "usb : Add sysfs files to control port power."
  USB: serial: remove vizzini driver
  usb: host: xhci: Fix Null pointer dereferencing with 71c731a for non-x86 systems
  Increase XHCI suspend timeout to 16ms
  USB: ohci-at91: fix null pointer in ohci_hcd_at91_overcurrent_irq
  USB: sierra_ms: don't keep unused variable
  fsl/usb: Add support for USB controller version 2.4
  USB: qcaux: add Pantech vendor class match
  ...
2012-10-01 13:23:01 -07:00
navin cbf7d122cc staging: usbip: vhci_hcd: Fixed oops during removal of vhci_hcd
In response to "usbip detach -p [port_number]" user command,vhci_shutdown_connection() gets
executed which kills tcp_tx,tcp_rx kernel threads but doesn't set thread pointers to NULL.
so, at the time of vhci_hcd removal vhci_shutdown_connection() again tries to kill kernel
threads which are already killed.

[  312.220259] BUG: unable to handle kernel NULL pointer dereference at           (null)
[  312.220313] IP: [<ffffffff8108186f>] exit_creds+0x1f/0x70
[  312.220349] PGD 5b7be067 PUD 5b7dc067 PMD 0
[  312.220388] Oops: 0000 [#1] SMP
[  312.220415] Modules linked in: vhci_hcd(O-) usbip_host(O) usbip_core(O) uas usb_storage joydev parport_pc bnep rfcomm ppdev binfmt_misc
snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event snd_seq
ath9k mac80211 ath9k_common ath9k_hw snd_timer snd_seq_device snd ath i915 drm_kms_helper drm psmouse cfg80211 coretemp soundcore lpc_ich i2c_algo_bit
snd_page_alloc video intel_ips wmi btusb mac_hid bluetooth ideapad_laptop lp sparse_keymap serio_raw mei microcode parport r8169
[  312.220862] CPU 0
[  312.220882] Pid: 2095, comm: usbip_eh Tainted: G           O 3.6.0-rc3+ #2 LENOVO 20042                           /Base Board Product Name
[  312.220938] RIP: 0010:[<ffffffff8108186f>]  [<ffffffff8108186f>] exit_creds+0x1f/0x70
[  312.220979] RSP: 0018:ffff88004d6ebdb0  EFLAGS: 00010282
[  312.221008] RAX: 0000000000000000 RBX: ffff880041c4db40 RCX: ffff88005ad52230
[  312.221041] RDX: 0000000000000034 RSI: 0000000000000286 RDI: 0000000000000000
[  312.221074] RBP: ffff88004d6ebdc0 R08: ffff88004d6ea000 R09: 0000000000000000
[  312.221107] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
[  312.221144] R13: 0000000000000000 R14: ffff88005ad521d8 R15: ffff88004d6ebea0
[  312.221177] FS:  0000000000000000(0000) GS:ffff880077400000(0000) knlGS:0000000000000000
[  312.221214] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  312.221241] CR2: 0000000000000000 CR3: 000000005b7b9000 CR4: 00000000000007f0
[  312.221277] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  312.221309] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  312.221342] Process usbip_eh (pid: 2095, threadinfo ffff88004d6ea000, task ffff88004d44db40)
[  312.221384] Stack:
[  312.221396]  ffff88004d6ebdc0 ffff880041c4db40 ffff88004d6ebde0 ffffffff81052aaa
[  312.221442]  ffff880041c4db40 0000000000000000 ffff88004d6ebe10 ffffffff8107a148
[  312.221487]  ffff88005ad521f0 ffff88005ad52228 ffff88004d44db40 ffff88005ad521d8
[  312.221536] Call Trace:
[  312.221556]  [<ffffffff81052aaa>] __put_task_struct+0x4a/0x140
[  312.221587]  [<ffffffff8107a148>] kthread_stop+0x108/0x110
[  312.221616]  [<ffffffffa0412569>] vhci_shutdown_connection+0x49/0x2b4 [vhci_hcd]
[  312.221657]  [<ffffffffa0139920>] event_handler_loop+0x70/0x140 [usbip_core]
[  312.221692]  [<ffffffff8107ad30>] ? add_wait_queue+0x60/0x60
[  312.221721]  [<ffffffffa01398b0>] ? usbip_stop_eh+0x30/0x30 [usbip_core]
[  312.221754]  [<ffffffff8107a453>] kthread+0x93/0xa0
[  312.221784]  [<ffffffff81670e84>] kernel_thread_helper+0x4/0x10
[  312.221814]  [<ffffffff8107a3c0>] ? flush_kthread_worker+0xb0/0xb0
[  312.223589]  [<ffffffff81670e80>] ? gs_change+0x13/0x13
[  312.225360] Code: 0b 0f 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 83 ec 08 66 66 66 66 90 48 8b 87 58 04 00 00 48 89 fb 48 8b bf 50 04 00 00
<8b> 00 48 c7 83 50 04 00 00 00 00 00 00 f0 ff 0f 0f 94 c0 84 c0
[  312.229663] RIP  [<ffffffff8108186f>] exit_creds+0x1f/0x70
[  312.231696]  RSP <ffff88004d6ebdb0>
[  312.233648] CR2: 0000000000000000
[  312.256464] ---[ end trace 1971ce612a167279 ]---

Signed-off-by: navin patidar <navinp@cdac.in>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-21 08:56:40 -07:00
navin b7caecb8c9 staging: usbip: stub_dev: Fixed oops during removal of usbip_host
stub_shutdown_connection() should set kernel thread pointers to NULL after killing them.
so that at the time of usbip_host removal stub_shutdown_connection() doesn't try to kill kernel threads
which are already killed.

[ 1504.312158] BUG: unable to handle kernel NULL pointer dereference at           (null)
[ 1504.315833] IP: [<ffffffff8108186f>] exit_creds+0x1f/0x70
[ 1504.317688] PGD 41f1c067 PUD 41d0f067 PMD 0
[ 1504.319611] Oops: 0000 [#2] SMP
[ 1504.321480] Modules linked in: vhci_hcd(O) usbip_host(O-) usbip_core(O) uas usb_storage joydev parport_pc bnep rfcomm ppdev binfmt_misc
snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event
snd_seq ath9k mac80211 ath9k_common ath9k_hw snd_timer snd_seq_device snd ath i915 drm_kms_helper drm psmouse cfg80211 coretemp soundcore
lpc_ich i2c_algo_bit snd_page_alloc video intel_ips wmi btusb mac_hid bluetooth ideapad_laptop lp sparse_keymap serio_raw mei microcode parport r8169
[ 1504.329666] CPU 1
[ 1504.329687] Pid: 2434, comm: usbip_eh Tainted: G      D    O 3.6.0-rc31+ #2 LENOVO 20042                           /Base Board Product Name
[ 1504.333502] RIP: 0010:[<ffffffff8108186f>]  [<ffffffff8108186f>] exit_creds+0x1f/0x70
[ 1504.335371] RSP: 0018:ffff880041c7fdd0  EFLAGS: 00010282
[ 1504.337226] RAX: 0000000000000000 RBX: ffff880041c2db40 RCX: ffff880041e4ae50
[ 1504.339101] RDX: 0000000000000044 RSI: 0000000000000286 RDI: 0000000000000000
[ 1504.341027] RBP: ffff880041c7fde0 R08: ffff880041c7e000 R09: 0000000000000000
[ 1504.342934] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
[ 1504.344840] R13: 0000000000000000 R14: ffff88004d448000 R15: ffff880041c7fea0
[ 1504.346743] FS:  0000000000000000(0000) GS:ffff880077440000(0000) knlGS:0000000000000000
[ 1504.348671] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 1504.350612] CR2: 0000000000000000 CR3: 0000000041d0d000 CR4: 00000000000007e0
[ 1504.352723] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1504.354734] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 1504.356737] Process usbip_eh (pid: 2434, threadinfo ffff880041c7e000, task ffff88004d448000)
[ 1504.358711] Stack:
[ 1504.360635]  ffff880041c7fde0 ffff880041c2db40 ffff880041c7fe00 ffffffff81052aaa
[ 1504.362589]  ffff880041c2db40 0000000000000000 ffff880041c7fe30 ffffffff8107a148
[ 1504.364539]  ffff880041e4ae10 ffff880041e4ae00 ffff88004d448000 ffff88004d448000
[ 1504.366470] Call Trace:
[ 1504.368368]  [<ffffffff81052aaa>] __put_task_struct+0x4a/0x140
[ 1504.370307]  [<ffffffff8107a148>] kthread_stop+0x108/0x110
[ 1504.370312]  [<ffffffffa040da4e>] stub_shutdown_connection+0x3e/0x1b0 [usbip_host]
[ 1504.370315]  [<ffffffffa03fd920>] event_handler_loop+0x70/0x140 [usbip_core]
[ 1504.370318]  [<ffffffff8107ad30>] ? add_wait_queue+0x60/0x60
[ 1504.370320]  [<ffffffffa03fd8b0>] ? usbip_stop_eh+0x30/0x30 [usbip_core]
[ 1504.370322]  [<ffffffff8107a453>] kthread+0x93/0xa0
[ 1504.370327]  [<ffffffff81670e84>] kernel_thread_helper+0x4/0x10
[ 1504.370330]  [<ffffffff8107a3c0>] ? flush_kthread_worker+0xb0/0xb0
[ 1504.370332]  [<ffffffff81670e80>] ? gs_change+0x13/0x13
[ 1504.370351] Code: 0b 0f 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 83 ec 08 66 66 66 66 90 48 8b 87 58 04 00 00 48 89 fb 48 8b bf 50 04 00 00
<8b> 00 48 c7 83 50 04 00 00 00 00 00 00 f0 ff 0f 0f 94 c0 84 c0
[ 1504.370353] RIP  [<ffffffff8108186f>] exit_creds+0x1f/0x70
[ 1504.370353]  RSP <ffff880041c7fdd0>
[ 1504.370354] CR2: 0000000000000000
[ 1504.401376] ---[ end trace 1971ce612a16727a ]---

Signed-off-by: navin patidar <navinp@cdac.in>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-21 08:56:39 -07:00
Greg Kroah-Hartman ba753e4180 Staging: remove CONFIG_EXPERIMENTAL dependancies
As discussed at the kernel summit this year, CONFIG_EXPERIMENTAL means
nothing, so let's get rid of it.

Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-17 23:02:36 -07:00
Lan Tianyu ff823c79a5 usb: move children to struct usb_port
The usb_device structure contains an array of usb_device "children".
This array is only valid if the usb_device is a hub, so it makes no
sense to store it there.  Instead, store the usb_device child
in its parent usb_port structure.

Since usb_port is an internal USB core structure, add a new function to
get the USB device child, usb_hub_find_child().  Add a new macro,
usb_hub_get_each_child(), to iterate over all the children attached to a
particular USB hub.

Remove the printing the USB children array pointer from the usb-ip
driver, since it's really not necessary.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 12:59:42 -07:00
navin patidar 107f04bbce staging: usbip: vhci_hcd: fixed suspend-resume loop
USB autosuspend suspends vhci_hcd. In this process hcd_bus_suspend gets
executed which puts vhci_hcd in suspend state and calls vhci_hub_status.
vhci_hub_status function checks hub state and if it is in suspend state,
usb_hcd_resume_root_hub gets executed which resumes hub and if hub is
idle, again autosuspend puts it in suspend state and this goes on.

vhci_hub_status should resume hub only when hub port is in suspend state
and hub port status has changed.

Signed-off-by: navin patidar <navinp@cdac.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-06 09:31:54 -07:00
Bernard Blackham 236742de5b staging: usbip: avoid deadlock in vhci_device_unlink_cleanup()
Almost all of usbip assumes that the_controller->lock is acquired
before vdev->priv_lock. The exception is in
vhci_device_unlink_cleanup(), where locks are acquired in the
reverse order. This leads to occasional deadlocks.

Fixing this is a bit fiddly, as the_controller->lock can't be held
when calling usb_hcd_unlink_urb_from_ep() in the middle of the list
traversal. As I can't rule out concurrent callers to this function
(perhaps it is safe?), the code here becomes slightly uglier - when
locks are dropped in the middle so the list may have emptied itself
(not even list_for_each_entry_safe is safe here).

Signed-off-by: Bernard Blackham <b-linuxgit@largestprime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-06 09:31:53 -07:00
W. Trevor King 4faf3a8d18 staging: usbip: userspace: update man pages for v1.0.0
This brings them back up to date after:

  commit e9837bbb3e
  Author: matt mooney <mfm@muteddisk.com>
  Date:   Thu May 26 06:17:11 2011 -0700

    staging: usbip: userspace tools v1.0.0

I couldn't find a current equivalent for

  client:# usbip --port

Perhaps that functionality has been deprecated due to better logging.
It seems like libsrc/usbip_common.h's usbip_status_string is no longer
used.

Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-17 09:44:04 -07:00
W. Trevor King ce591f76c7 staging: usbip: userspace: allow `configure --with-tcp-wrappers`
When `--with-tcp-wrappers` is passed to `configure`, the previous code
always reset LIBS to $saved_LIBS, regardless of whether libwrap was
found or not.  The current code makes the `--with-tcp-wrappers` case
look more like the default case, and it only resets LIBS if libwrap
was not found.

Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-17 09:44:04 -07:00
W. Trevor King 93efc55b42 staging: usbip: export usbip_debug_flag as a usbip-core module parameter.
Now usbip_common.c's pr_fmt is the only thing setup by CONFIG_USBIP_DEBUG
that you can't subsequently alter using this parameter.

Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-17 09:44:04 -07:00
Justin P. Mattock 4ec2601f6f staging "usbip" Fix typos.
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-13 19:32:14 -07:00
Bart Westgeest 7489301a15 staging: usbip: cleanup and fix of vhci_hub_status
Changed setting the status bits to a byte-oriented approach. Number of
written status bits is now based on VHCI_NPORT, instead of casting
status buffer to a long. This fixes a stack corruption bug on 64-bit
based architectures, and potential byte order / endianness related
issues.

In addition updated function comments, and log statements.

Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-13 17:22:57 -07:00
Bart Westgeest 1132b9aafa staging: usbip: Updated comment describing VHCI_NPORTS
Updated out-of-date comment describing VHCI_NPORT

Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-11 17:06:35 -07:00
Natanael Copa e034410a3d staging: usbip: userspace: include headers in release tarballs
The header files should be included in generated tarballs for archives.

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-11 09:07:43 -07:00
Masanari Iida 73e2918990 staging: Fix typo in multiple files
Collect spelling typo in multiple files within staging directory.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-10 10:31:01 -07:00
Christopher Harvey 3567f97965 staging: usbip: Fix typo in printed text
Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-10 09:47:06 -07:00
Christopher Harvey 2f5c638ced staging: usbip: fix potential segfault because of unchecked return value of strchr.
This doesn't happen with the usbip virtual hci module, but another
module wanting to interface with this user space code could cause a
seg-fault by sending data without newlines.

Signed-off-by: Christopher Harvey <charvey@matrox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-10 09:47:06 -07:00
Oleg Nesterov ba46ce30f1 staging: usbip: fix the usage of kthread_stop()
stub_shutdown_connection() and vhci_shutdown_connection() use
task_is_dead() before kthread_stop(). This buys nothing and wrong.
kthread_stop() is fine even if this thread is dead. However, if it
is dead nothing protects this task_struct, we shouldn't touch this
memory.

Change the code to do the necessary get_task_struct/put_task_struct.

This patch assumes that

	- xxx_shutdown_connection() is always called, so we can't
	  leak the task_struct.

	- kthread_stop_put() can't be called twice on the same task.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Tobias Klauser <tklauser@distanz.ch>
Cc: Matt Mooney <mfm@muteddisk.com>,
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-10 09:28:04 -07:00
Santosh Nayak ea50a5da79 Staging: usbip: Remove commented code.
Remove commented code of old style lock initilization

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 11:59:57 -08:00
Greg Kroah-Hartman b91867f2ee Merge tag 'staging-3.3-rc3' into staging-next
This was done to resolve some merge issues with the following files that
had changed in both branches:
	drivers/staging/rtl8712/rtl871x_sta_mgt.c
	drivers/staging/tidspbridge/rmgr/drv_interface.c
	drivers/staging/zcache/zcache-main.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-10 10:58:25 -08:00
Bart Westgeest 34c0957817 staging: usbip: removed #if 0'd out code
Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-09 09:42:23 -08:00
Bart Westgeest ac2b41acfa staging: usbip: changed function return type to void
The function usbip_pad_iso never returns anything but 0 (success).

Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-09 09:42:23 -08:00
Bart Westgeest 98b9de2189 staging: usbip: removed unused structure field
Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-09 09:42:22 -08:00
Bart Westgeest 737912e11b staging: usbip: fix to prevent potentially using uninitialized spinlock
The stub_probe function can be called as soon as the stub_driver is
registered. This can lead to the busid_table_lock being used before it
is initialized. Moved calling the init_busid_table function (which
initalizes this spinlock) to be called earlier in the init function to
prevent this from happening.

Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08 14:14:15 -08:00
Bart Westgeest 75fe8c8b90 staging: usbip: removed unused definitions from header
Removed remnants of old function definitions which have since been
removed in earlier cleanup work.

Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-22 13:40:03 -08:00
Bart Westgeest 5a08c5267e staging: usbip: removed dead code from receive function
The usbip_xmit function supported sending and receiving data, however
the sending part of the function was never used/executed. Renamed the
function to usbip_recv, and removed the unused code.

Signed-off-by: Bart Westgeest <bart@elbrys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-22 13:40:03 -08:00
Bart Westgeest 438957f8d4 staging: usbip: bugfix for deadlock
Interrupts must be disabled prior to calling usb_hcd_unlink_urb_from_ep.
If interrupts are not disabled, it can potentially lead to a deadlock.
The deadlock is readily reproduceable on a slower (ARM based) device
such as the TI Pandaboard.

Signed-off-by: Bart Westgeest <bart@elbrys.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26 17:37:38 -08:00
Paul Gortmaker 452962366c staging: Add module.h to more drivers implicitly using it.
This 2nd batch of implicit module.h users only appeared when we
removed the unnecessary module.h from include/linux/miscdevice.h
[The 1st batch is already present in Greg's staging tree.]

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:32:10 -04:00
Paul Gortmaker 8e336a722b staging: Add export.h for THIS_MODULE/EXPORT_SYMBOL to drivers/staging users.
Lots of drivers have in the past expected the presence of basic things
like THIS_MODULE and EXPORT_SYMBOL.  With the header cleanup, they wont
have these.  Call out the include explicitly.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:32:08 -04:00
Alexander Thomas 7518b9b8fc staging: usbip: fix up api changes that broke windows clients
Revert changes in definitions that were submitted on May 11 2011 and
committed on June 7 2011. No reason for the change in these values was
given in the patch comment, it broke compatibility with older
versions, and was difficult to detect by the simultaneous move of the
lines of code.

Signed-off-by: Alexander Thomas <alexander.thomas@esaturnus.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-09-19 10:45:03 -07:00
Paul Gortmaker 99c978529a staging: Add module.h to drivers/staging users
Lots of people expect module.h to just "be there" without
any #include effort.  But we are crushing that.  So fix those
files in staging relying on implicit module.h presence.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-25 17:01:20 -07:00
Greg Kroah-Hartman a813833df8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lwfinger/r8192E into staging-next
* git://git.kernel.org/pub/scm/linux/kernel/git/lwfinger/r8192E: (61 commits)
  staging: rtl8192e: Fix compilation warnings
  staging: rtl8192e: Fix unload/reload problem
  staging: rtl8192e: Remove dead code associated with CONFIG_RTL_RFKILL
  staging: rtl8192e: Remove conditional code associated with EEPROM_OLD_FORMAT_SUPPORT
  staging: rtl8192e: Remove dead code associated with EFUSE_REPG_WORKAROUND
  staging: rtl8192e: Remove LOOP_TEST as parameter
  staging: rtl8192e: Remove dead code associated with CONFIG_FW_SETCHAN
  staging: rtl8192e: Remove dead code associated with CONFIG_RTLWIFI_DEBUGFS
  staging: rtl8192e: Remove dead code associated with _RTL8192_EXT_PATCH_
  staging: rtl8192e: Remove ifdefs for CONFIG_RTLLIB_DEBUG
  staging: rtl8192e: Remove dead code associated with RTL819x_DEBUG
  staging: rtl8192e: Remove dead code associated with _ENABLE_SW_BEACON
  staging: rtl8192e: Remove dead code associated with CONFIG_CRYPTO_HMAC
  staging: rtl8192e: Remove dead code associated with CONFIG_BT_30
  staging: rtl8192e: Remove dead code associated with ENABLE_NULL_PT_DEBUG
  staging: rtl8192e: Remove dead code associated with CONFIG_64BIT_DMA
  staging: rtl8192e: Remove dead code associated with CONFIG_RTLLIB_CRYPT_TKIP
  staging: rtl8192e: Remove dead code associated with IRQF_SHARED
  staging: rtl8192e: Remove dead code associated with CONFIG_CFG_80211
  staging: rtl8192e: Remove dead code associated with BUILT_IN_CRYPTO
  ...
2011-08-23 21:17:36 -07:00
Julia Lawall 9358354858 drivers/staging/usbip/userspace/libsrc/vhci_driver.c: test the just-initialized value
Test the just-initialized value rather than some other one.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier x,y,f!={PTR_ERR,ERR_PTR,ERR_CAST};
statement S;
@@

x = f(...);
(
if (\(x == NULL\|IS_ERR(x)\)) S
|
*if (\(y == NULL\|IS_ERR(y)\))
 { ... when != x
   return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: David Chang <dchang@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 14:42:34 -07:00
Tobias Klauser 306dac699e staging: usbip: Add header guards to stub.h and vhci.h
stub.h and vhci.h are missing proper #ifndef/#define header guards, so
add them.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 14:42:34 -07:00
Márton Németh c8742cf07d staging: usbip: add a usbip protocol document
Initial version of USBIP protocol document.

Signed-off-by: David Chang <dchang@suse.com>
Acked-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 14:42:34 -07:00
Tobias Klauser 549fb10097 staging: usbip: userspace: Check return value for mkdir()
mkdir() could fail, so we should check its return value.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 14:42:33 -07:00
Akshay Joshi 97c451ca10 Staging: usbip: Fix braces and spaces to match coding style.
Fix brace positioning and spaces at the start of lines in order to
comply with the kernel coding style.

Signed-off-by: Akshay Joshi <me@akshayjoshi.com>
Acked-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 14:42:33 -07:00
Akshay Joshi 553a1a5065 Staging: usbip: Remove trailing spaces.
Remove trailing spaces to comply with the kernel coding style.

Signed-off-by: Akshay Joshi <me@akshayjoshi.com>
Acked-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 14:42:33 -07:00
Larry Finger 275d38585c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
Conflicts:
	Documentation/feature-removal-schedule.txt
	drivers/staging/bcm/headers.h
	drivers/staging/brcm80211/brcmfmac/dhd_linux.c
	drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
	drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h
	drivers/staging/et131x/et131x_netdev.c
	drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
	drivers/staging/rtl8192e/r8192E.h
	drivers/staging/usbip/userspace/src/utils.h
2011-08-01 12:33:12 -05:00
Larry Finger 48d67fe035 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
Conflicts:
	Documentation/feature-removal-schedule.txt
	drivers/staging/bcm/headers.h
	drivers/staging/brcm80211/brcmfmac/dhd_linux.c
	drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
	drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h
	drivers/staging/brcm80211/brcmfmac/wl_iw.c
	drivers/staging/et131x/et131x_netdev.c
	drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
	drivers/staging/rtl8192e/r8192E.h
	drivers/staging/usbip/userspace/src/utils.h
2011-07-26 15:52:24 -05:00
matt mooney 0aee588945 staging: usbip: userspace: usbip-utils 1.1.1
Bump package revision number!

Signed-off-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-08 14:01:18 -07:00
matt mooney 45dd9a98f7 staging: usbip: userspace: README: update example output
Change a missed reference to the `list' command, and update the output
from `usbip bind ...' and `usbip list -r ...'

Signed-off-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-07-08 14:01:17 -07:00