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18530bedd2
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Yang Yingliang 18530bedd2 thermal/core: Fix memory leak in __thermal_cooling_device_register() 
[ Upstream commit 98a160e898c0f4a979af9de3ab48b4b1d42d1dbb ]

I got memory leak as follows when doing fault injection test:

unreferenced object 0xffff888010080000 (size 264312):
  comm "182", pid 102533, jiffies 4296434960 (age 10.100s)
  hex dump (first 32 bytes):
    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........
    ff ff ff ff ff ff ff ff 40 7f 1f b9 ff ff ff ff  ........@.......
  backtrace:
    [<0000000038b2f4fc>] kmalloc_order_trace+0x1d/0x110 mm/slab_common.c:969
    [<00000000ebcb8da5>] __kmalloc+0x373/0x420 include/linux/slab.h:510
    [<0000000084137f13>] thermal_cooling_device_setup_sysfs+0x15d/0x2d0 include/linux/slab.h:586
    [<00000000352b8755>] __thermal_cooling_device_register+0x332/0xa60 drivers/thermal/thermal_core.c:927
    [<00000000fb9f331b>] devm_thermal_of_cooling_device_register+0x6b/0xf0 drivers/thermal/thermal_core.c:1041
    [<000000009b8012d2>] max6650_probe.cold+0x557/0x6aa drivers/hwmon/max6650.c:211
    [<00000000da0b7e04>] i2c_device_probe+0x472/0xac0 drivers/i2c/i2c-core-base.c:561

If device_register() fails, thermal_cooling_device_destroy_sysfs() need be called
to free the memory allocated in thermal_cooling_device_setup_sysfs().

Fixes: 8ea229511e ("thermal: Add cooling device's statistics in sysfs")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220511020605.3096734-1-yangyingliang@huawei.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-09 10:21:11 +02:00
arch x86/sev: Annotate stack change in the #VC handler 2022-06-09 10:21:10 +02:00
block block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern 2022-05-12 12:25:45 +02:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-15 09:50:29 +02:00
crypto crypto: ecrdsa - Fix incorrect use of vli_cmp 2022-06-06 08:42:43 +02:00
Documentation spi: qcom-qspi: Add minItems to interconnect-names 2022-06-09 10:20:59 +02:00
drivers thermal/core: Fix memory leak in __thermal_cooling_device_register() 2022-06-09 10:21:11 +02:00
fs ext4: reject the 'commit' option on ext2 filesystems 2022-06-09 10:21:10 +02:00
include thermal/drivers/core: Use a char pointer for the cooling device name 2022-06-09 10:21:11 +02:00
init random: handle latent entropy and command line from random_init() 2022-05-30 09:33:44 +02:00
ipc shm: extend forced shm destroy to support objects from several IPC nses 2021-12-01 09:19:10 +01:00
kernel sched/fair: Fix cfs_rq_clock_pelt() for throttled cfs_rq 2022-06-09 10:21:02 +02:00
lib lib/crypto: add prompts back to crypto libraries 2022-06-06 08:42:42 +02:00
LICENSES LICENSES/deprecated: add Zlib license text 2020-09-16 14:33:49 +02:00
mm zsmalloc: fix races between asynchronous zspage free and page migration 2022-06-06 08:42:43 +02:00
net sctp: read sk->sk_bound_dev_if once in sctp_rcv() 2022-06-09 10:21:09 +02:00
samples samples/bpf, xdpsock: Fix race when running for fix duration of time 2022-04-08 14:40:21 +02:00
scripts scripts/faddr2line: Fix overlapping text section failures 2022-06-09 10:21:08 +02:00
security lsm,selinux: pass flowi_common instead of flowi to the LSM hooks 2022-06-09 10:21:09 +02:00
sound ASoC: ti: j721e-evm: Fix refcount leak in j721e_soc_probe_* 2022-06-09 10:21:09 +02:00
tools kselftest/cgroup: fix test_stress.sh to use OUTPUT dir 2022-06-09 10:21:07 +02:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:25:48 +01:00
virt KVM: Prevent module exit until all VMs are freed 2022-04-08 14:40:38 +02:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: generate Module.symvers only when vmlinux exists 2021-05-19 10:12:59 +02:00
.mailmap mailmap: add two more addresses of Uwe Kleine-König 2020-12-06 10:19:07 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Jason Cooper to CREDITS 2020-11-30 10:20:34 +01:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: add git tree for random.c 2022-05-30 09:33:24 +02:00
Makefile Linux 5.10.120 2022-06-06 08:42:45 +02:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.