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| author | Wentao Liang <vulab@iscas.ac.cn> | 2026-09-16 09:58:05 +0000 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-09-23 15:53:05 -0400 |
| commit | 2b86ab1bd6673c525adda88819d7658ba9e784ec (patch) | |
| tree | 7b4290de2ecd29e945ed10dcb00ec740f5d28132 /tools/perf/scripts/python/stackcollapse.py | |
| parent | b4f7b4459b1b155e4c4977a6482b5df2cf08758c (diff) | |
| download | linux-next-2b86ab1bd6673c525adda88819d7658ba9e784ec.tar.gz linux-next-2b86ab1bd6673c525adda88819d7658ba9e784ec.zip | |
drm/amdgpu: Fix runtime PM leak in amdgpu_debugfs_test_ib_show()
amdgpu_debugfs_test_ib_show() resumes the device with
pm_runtime_get_sync() before taking the reset domain semaphore with
down_write_killable(). If the write lock acquisition is interrupted,
the function returns without calling pm_runtime_put_autosuspend(),
leaking the runtime PM reference acquired for the device and keeping
the GPU awake.
Drop the runtime PM reference on the interrupted down_write_killable()
error path before returning.
Fixes: 6049db43d6dd ("drm/amdgpu: change reset lock from mutex to rw_semaphore")
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit ec30a576c2d4c0364549e6c04218f50704ef56c8)
Cc: stable@vger.kernel.org
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions