diff options
| author | Liguang Zhang <[email protected]> | 2020-02-21 16:35:07 +0000 |
|---|---|---|
| committer | Catalin Marinas <[email protected]> | 2020-02-27 17:14:14 +0000 |
| commit | c66d52b1026717135c5030c65e344750161d159b (patch) | |
| tree | 4f8a3fe1c45ec321e2e4a9e5473bbc6725ec4638 /lib/test_overflow.c | |
| parent | 6ded0b61cf638bf9f8efe60ab8ba23db60ea9763 (diff) | |
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 <[email protected]>
[expanded subject, added wrappers instead of duplicating contents]
Signed-off-by: James Morse <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Diffstat (limited to 'lib/test_overflow.c')
0 files changed, 0 insertions, 0 deletions