diff options
| author | Allen Pan <allen.pan@amd.com> | 2024-02-23 18:20:16 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-03-20 13:12:59 -0400 |
| commit | 334b56cea5d9df5989be6cf1a5898114fa70ad98 (patch) | |
| tree | 37f445db6d2e3579bef9e502b121fba8351a3804 | |
| parent | e64b3f55e458ce7e2087a0051f47edabf74545e7 (diff) | |
| download | linux-334b56cea5d9df5989be6cf1a5898114fa70ad98.tar.gz | |
drm/amd/display: Add a dc_state NULL check in dc_state_release
[How]
Check wheather state is NULL before releasing it.
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Allen Pan <allen.pan@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_state.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_state.c b/drivers/gpu/drm/amd/display/dc/core/dc_state.c index 180ac47868c22a..5cc7f8da209c59 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_state.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_state.c @@ -334,7 +334,8 @@ static void dc_state_free(struct kref *kref) void dc_state_release(struct dc_state *state) { - kref_put(&state->refcount, dc_state_free); + if (state != NULL) + kref_put(&state->refcount, dc_state_free); } /* * dc_state_add_stream() - Add a new dc_stream_state to a dc_state. |