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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2017-04-25 13:27:08 +0300 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2017-05-28 03:31:05 +0300 |
| commit | 289d72afddf83440117c35d864bf0c6309c1d011 (patch) | |
| tree | 2a3db987ebd7578a074d15c1aafe8680250f3557 /lib/genalloc.c | |
| parent | 2ea659a9ef488125eb46da6eb571de5eae5c43f6 (diff) | |
| download | linux-289d72afddf83440117c35d864bf0c6309c1d011.tar.xz | |
thermal: cpu_cooling: Avoid accessing potentially freed structures
After the lock is dropped, it is possible that the cpufreq_dev gets
freed before we call get_level() and that can cause kernel to crash.
Drop the lock after we are done using the structure.
Cc: 4.2+ <stable@vger.kernel.org> # 4.2+
Fixes: 02373d7c69b4 ("thermal: cpu_cooling: fix lockdep problems in cpu_cooling")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'lib/genalloc.c')
0 files changed, 0 insertions, 0 deletions