diff options
| author | Liguang Zhang <zhangliguang@linux.alibaba.com> | 2020-02-21 16:35:07 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2020-02-27 17:14:14 +0000 |
| commit | c66d52b1026717135c5030c65e344750161d159b (patch) | |
| tree | 4f8a3fe1c45ec321e2e4a9e5473bbc6725ec4638 /samples/uhid | |
| parent | 6ded0b61cf638bf9f8efe60ab8ba23db60ea9763 (diff) | |
| download | linux-stable-c66d52b1026717135c5030c65e344750161d159b.tar.gz linux-stable-c66d52b1026717135c5030c65e344750161d159b.tar.bz2 linux-stable-c66d52b1026717135c5030c65e344750161d159b.zip | |
firmware: arm_sdei: fix possible double-lock on hibernate error path
We call sdei_reregister_event() with sdei_list_lock held, if the register
fails we call sdei_event_destroy() which also acquires sdei_list_lock
thus creating A-A deadlock.
Add '_llocked' to sdei_reregister_event(), to indicate the list lock
is held, and add a _llocked variant of sdei_event_destroy().
Fixes: da351827240e ("firmware: arm_sdei: Add support for CPU and system power states")
Signed-off-by: Liguang Zhang <zhangliguang@linux.alibaba.com>
[expanded subject, added wrappers instead of duplicating contents]
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'samples/uhid')
0 files changed, 0 insertions, 0 deletions