Gioh Kim f7452a7e96 RDMA/rtrs-srv: fix memory leak by missing kobject free ... kmemleak reported an error as below: unreferenced object 0xffff8880674b7640 (size 64): comm "kworker/4:1H", pid 113, jiffies 4296403507 (age 507.840s) hex dump (first 32 bytes): 69 70 3a 31 39 32 2e 31 36 38 2e 31 32 32 2e 31 ip:192.168.122.1 31 30 40 69 70 3a 31 39 32 2e 31 36 38 2e 31 32 10@ip:192.168.12 backtrace: [<0000000054413611>] kstrdup+0x2e/0x60 [<0000000078e3120a>] kobject_set_name_vargs+0x2f/0xb0 [<00000000ca2be3ee>] kobject_init_and_add+0xb0/0x120 [<0000000062ba5e78>] rtrs_srv_create_sess_files+0x14c/0x314 [rtrs_server] [<00000000b45b7217>] rtrs_srv_info_req_done+0x5b1/0x800 [rtrs_server] [<000000008fc5aa8f>] __ib_process_cq+0x94/0x100 [ib_core] [<00000000a9599cb4>] ib_cq_poll_work+0x32/0xc0 [ib_core] [<00000000cfc376be>] process_one_work+0x4bc/0x980 [<0000000016e5c96a>] worker_thread+0x78/0x5c0 [<00000000c20b8be0>] kthread+0x191/0x1e0 [<000000006c9c0003>] ret_from_fork+0x3a/0x50 It is caused by the not-freed kobject of rtrs_srv_sess. The kobject embedded in rtrs_srv_sess has ref-counter 2 after calling process_info_req(). Therefore it must call kobject_put twice. Currently it calls kobject_put only once at rtrs_srv_destroy_sess_files because kobject_del removes the state_in_sysfs flag and then kobject_put in free_sess() is not called. This patch moves kobject_del() into free_sess() so that the kobject of rtrs_srv_sess can be freed. And also this patch adds the missing call of sysfs_remove_group() to clean-up the sysfs directory. Fixes: 9cb8374804 ("RDMA/rtrs: server: main functionality") Link: https://lore.kernel.org/r/20210212134525.103456-4-jinpu.wang@cloud.ionos.com Signed-off-by: Gioh Kim <gi-oh.kim@cloud.ionos.com> Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>		2021-02-16 14:42:59 -04:00
..
accessibility	speakup: fix uninitialized flush_lock	2020-12-09 15:38:13 +01:00
acpi	ACPI: scan: Harden acpi_device_add() against device ID overflows	2021-01-11 20:45:31 +01:00
amba	…
android	Merge branch 'exec-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2020-12-15 19:29:43 -08:00
ata	…
atm	atm: idt77252: call pci_disable_device() on error path	2020-12-21 17:34:09 -08:00
auxdisplay	…
base	Device properties framework fixes for 5.11-rc3	2021-01-08 15:45:47 -08:00
bcma	…
block	block/rnbd-clt: avoid module unload race with close confirmation	2021-01-08 08:19:18 -07:00
bluetooth	Bluetooth: btusb: Add workaround for remote-wakeup issues with Barrot 8041a02 fake CSR controllers	2020-12-07 17:01:54 +02:00
bus	ARM: SoC drivers for v5.11	2020-12-16 16:38:41 -08:00
cdrom	cdrom: Reset sector_size back it is not 2048.	2020-12-12 11:12:25 -07:00
char	UAPI Changes:	2020-12-18 12:38:28 -08:00
clk	clk: tegra30: Add hda clock default rates to clock driver	2021-01-12 14:43:53 +01:00
clocksource	asm-generic: cross-architecture timer cleanup	2020-12-16 00:07:17 -08:00
connector	net/connector: Add const qualifier to cb_id	2020-12-16 11:06:49 -08:00
counter	counter: microchip-tcb-capture: Fix CMR value check	2020-12-03 19:40:31 +00:00
cpufreq	cpufreq: intel_pstate: remove obsolete functions	2021-01-07 18:22:46 +01:00
cpuidle	ARM: SoC drivers for v5.11	2020-12-16 16:38:41 -08:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2020-12-27 09:14:32 -08:00
dax	libnvdimm for 5.11	2020-12-24 12:18:11 -08:00
dca	…
devfreq	Merge branches 'pm-devfreq' and 'pm-tools'	2020-12-15 15:27:16 +01:00
dio	…
dma	dmaengine: stm32-mdma: fix STM32_MDMA_VERY_HIGH_PRIORITY value	2021-01-04 21:27:45 +05:30
dma-buf	dma-buf: cma_heap: Fix memory leak in CMA heap	2021-01-10 23:08:21 +05:30
edac	Merge branch 'akpm' (patches from Andrew)	2020-12-15 12:53:37 -08:00
eisa	…
extcon	extcon: max77693: Fix modalias string	2020-12-11 17:18:10 +09:00
firewire	…
firmware	EFI updates collected by Ard Biesheuvel:	2020-12-24 12:40:07 -08:00
fpga	Merge 5.10-rc7 into char-misc-next	2020-12-07 10:08:14 +01:00
fsi	hwmon patches for v5.11	2020-12-15 16:06:14 -08:00
gnss	…
gpio	This is the bulk of the GPIO changes for the v5.11 kernel cycle:	2020-12-17 18:07:20 -08:00
gpu	Merge branch '04.01-ampere-lite' of git://github.com/skeggsb/linux into topic/nouveau-ampere-modeset	2021-01-15 14:48:18 +10:00
greybus	…
hid	HID: logitech-hidpp: Add product ID for MX Ergo in Bluetooth mode	2021-01-14 13:27:35 +01:00
hsi	HSI: core: fix a kernel-doc markup	2020-12-02 22:35:44 +01:00
hv	x86/hyperv: Fix kexec panic/hang issues	2021-01-05 17:52:04 +00:00
hwmon	hwmon: (amd_energy) fix allocation of hwmon_channel_info config	2021-01-08 07:31:03 -08:00
hwspinlock	hwspinlock: sirf: Remove the redundant 'of_match_ptr'	2020-12-10 13:34:40 -06:00
hwtracing	Char / Misc driver updates for 5.11-rc1	2020-12-15 14:10:09 -08:00
i2c	i2c: mediatek: Fix apdma and i2c hand-shake timeout	2021-01-05 10:54:37 +01:00
i3c	i3c/master/mipi-i3c-hci: quiet maybe-unused variable warning	2020-12-17 10:31:30 +01:00
ide	SCSI fixes on 20210101	2021-01-01 12:58:07 -08:00
idle	intel_idle: add SnowRidge C-state table	2020-12-30 18:25:34 +01:00
iio	Staging / IIO driver patches for 5.11-rc1	2020-12-15 14:18:40 -08:00
infiniband	RDMA/rtrs-srv: fix memory leak by missing kobject free	2021-02-16 14:42:59 -04:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-12-15 16:18:23 -08:00
interconnect	interconnect: imx8mq: Use icc_sync_state	2020-12-28 14:03:02 +02:00
iommu	iommu/vt-d: Fix duplicate included linux/dma-map-ops.h	2021-01-12 16:56:20 +00:00
ipack	…
irqchip	ARM:	2020-12-20 10:44:05 -08:00
isdn	misdn: dsp: select CONFIG_BITREVERSE	2021-01-05 15:50:36 -08:00
leds	…
lightnvm	lightnvm: select CONFIG_CRC32	2021-01-03 14:54:44 -07:00
macintosh	macintosh/adb-iop: Send correct poll command	2020-12-07 10:48:16 +01:00
mailbox	mailbox: arm_mhuv2: Add driver	2020-12-09 19:26:02 -06:00
mcb	…
md	- Fix DM-raid's raid1 discard limits so discards work.	2021-01-15 18:01:17 -08:00
media	ARM: SoC drivers for v5.11	2020-12-16 16:38:41 -08:00
memory	Merge tag 'memory-controller-drv-tegra-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers	2020-12-09 00:40:02 +01:00
memstick	memstick: r592: Fix error return in r592_probe()	2020-12-04 12:27:10 +01:00
message	SCSI misc on 20201216	2020-12-16 13:34:31 -08:00
mfd	mfd: ab8500-debugfs: Remove extraneous seq_putc	2020-12-26 09:19:49 -08:00
misc	misc: pvpanic: Check devm_ioport_map() for NULL	2021-01-07 20:28:01 +01:00
mmc	MMC core:	2020-12-15 15:57:25 -08:00
most	…
mtd	This pull request contains changes for JFFS2, UBI and UBIFS:	2020-12-17 17:46:34 -08:00
mux	…
net	RDMA/mlx5: Cleanup the synchronize_srcu() from the ODP flow	2021-02-08 20:31:11 -04:00
nfc	nfc: s3fwrn5: Remove unused NCI prop commands	2020-12-16 13:09:35 -08:00
ntb	Big fix for IDT NTB and Intel NTB LTR management support	2020-12-27 09:22:55 -08:00
nubus	…
nvdimm	libnvdimm/label: Return -ENXIO for no slot in __blk_label_update	2020-12-16 16:53:00 -08:00
nvme	nvme: don't intialize hwmon for discovery controllers	2021-01-14 20:27:35 +01:00
nvmem	…
of	Driver core updates for 5.11-rc1	2020-12-15 14:02:26 -08:00
opp	opp: Call the missing clk_put() on error	2020-12-28 10:56:22 +05:30
oprofile	…
parisc	…
parport	…
pci	pci-v5.11-fixes-1	2020-12-25 20:17:40 -08:00
pcmcia	Merge branch 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux	2020-12-19 12:50:10 -08:00
perf	Revert "arm64: Enable perf events based hard lockup detector"	2021-01-13 15:08:41 +00:00
phy	Char / Misc driver updates for 5.11-rc1	2020-12-15 14:10:09 -08:00
pinctrl	A treewide cleanup of interrupt descriptor (ab)use with all sorts of racy	2020-12-24 13:50:23 -08:00
platform	chrome platform changes for 5.11	2020-12-23 15:06:22 -08:00
pnp	…
power	power: supply: Fix a typo in warning message	2020-12-13 01:00:10 +01:00
powercap	Merge branches 'pm-sleep', 'pm-acpi', 'pm-domains' and 'powercap'	2020-12-15 15:26:14 +01:00
pps	…
ps3	powerpc/ps3: use dma_mapping_error()	2020-12-15 22:50:12 +11:00
ptp	ptp: ptp_ines: prevent build when HAS_IOMEM is not set	2021-01-06 16:17:23 -08:00
pwm	pwm: Changes for v5.11-rc1	2020-12-19 11:51:32 -08:00
rapidio	rapidio: remove unused rio_get_asm() and rio_get_device()	2020-12-15 22:46:18 -08:00
ras	…
regulator	Merge qcom driver fix into regulator-5.11	2021-01-04 16:23:20 +00:00
remoteproc	ARM: SoC drivers for v5.11	2020-12-16 16:38:41 -08:00
reset	ARM: SoC drivers for v5.11	2020-12-16 16:38:41 -08:00
rpmsg	…
rtc	RTC for 5.11	2020-12-20 10:12:06 -08:00
s390	s390/qeth: fix L2 header access in qeth_l3_osa_features_check()	2021-01-07 18:54:06 -08:00
sbus	…
scsi	scsi: sd: Remove obsolete variable in sd_remove()	2021-01-05 23:46:33 -05:00
sfi	…
sh	…
siox	siox: Make remove callback return void	2020-12-10 16:17:15 +01:00
slimbus	slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()	2020-12-10 16:23:56 +01:00
soc	OpenRISC updates for 5.11	2020-12-17 13:41:27 -08:00
soundwire	soundwire: intel: fix another unused-function warning	2020-12-05 13:11:54 +05:30
spi	spi: fix the divide by 0 error when calculating xfer waiting time	2021-01-04 14:24:58 +00:00
spmi	spmi: Add driver shutdown support	2020-12-10 10:45:36 +01:00
ssb	…
staging	staging: ION: remove some references to CONFIG_ION	2021-01-06 17:39:38 +01:00
target	scsi: target: Fix XCOPY NAA identifier lookup	2021-01-11 17:06:48 -05:00
tc	…
tee	ARM: SoC drivers for v5.11	2020-12-16 16:38:41 -08:00
thermal	- Add Alder Lake support ACPI ids (Srinivas Pandruvada)	2020-12-18 12:19:37 -08:00
thunderbolt	thunderbolt: Changes for v5.11 merge window	2020-12-08 13:41:45 +01:00
tty	RISC-V Fixes for 5.11-rc4	2021-01-16 11:00:08 -08:00
uio	uio: uio_hv_generic: use devm_kzalloc() for private data alloc	2020-12-09 19:59:00 +01:00
usb	usb: dwc3: gadget: Clear wait flag on dequeue	2021-01-07 14:24:35 +01:00
vdpa	virtio,vdpa: features, cleanups, fixes	2020-12-24 12:06:46 -08:00
vfio	ARM:	2020-12-20 10:44:05 -08:00
vhost	vhost: bugfix	2021-01-05 13:30:28 -08:00
video	UAPI Changes:	2020-12-18 12:38:28 -08:00
virt	…
virtio	virtio,vdpa: features, cleanups, fixes	2020-12-24 12:06:46 -08:00
visorbus	…
vlynq	…
vme	vme: switch from 'pci_' to 'dma_' API	2020-12-09 19:44:34 +01:00
w1	…
watchdog	linux-watchdog 5.11-rc1 tag	2020-12-23 15:01:49 -08:00
xen	xen: branch for v5.11-rc4	2021-01-15 10:52:00 -08:00
zorro	…
Kconfig	…
Makefile	asm-generic: cross-architecture timer cleanup	2020-12-16 00:07:17 -08:00