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| author | Srinivasan Shanmugam <[email protected]> | 2024-07-21 13:48:58 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-07-23 21:41:47 +0000 |
| commit | f22f4754aaa47d8c59f166ba3042182859e5dff7 (patch) | |
| tree | 9e00e9f308756979e6b871eb1f12df85a0ce661e /drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | |
| parent | drm/amd/display: Fix index out of bounds in DCN30 color transformation (diff) | |
| download | kernel-f22f4754aaa47d8c59f166ba3042182859e5dff7.tar.gz kernel-f22f4754aaa47d8c59f166ba3042182859e5dff7.zip | |
drm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layer
This commit addresses a potential null pointer dereference issue in the
`dcn201_acquire_free_pipe_for_layer` function. The issue could occur
when `head_pipe` is null.
The fix adds a check to ensure `head_pipe` is not null before asserting
it. If `head_pipe` is null, the function returns NULL to prevent a
potential null pointer dereference.
Reported by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn201/dcn201_resource.c:1016 dcn201_acquire_free_pipe_for_layer() error: we previously assumed 'head_pipe' could be null (see line 1010)
Cc: Tom Chung <[email protected]>
Cc: Rodrigo Siqueira <[email protected]>
Cc: Roman Li <[email protected]>
Cc: Alex Hung <[email protected]>
Cc: Aurabindo Pillai <[email protected]>
Cc: Harry Wentland <[email protected]>
Cc: Hamza Mahfooz <[email protected]>
Signed-off-by: Srinivasan Shanmugam <[email protected]>
Reviewed-by: Tom Chung <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.h')
0 files changed, 0 insertions, 0 deletions