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| author | Nirmoy Das <nirmoy.das@amd.com> | 2021-05-27 14:03:33 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-01 22:36:57 -0400 |
| commit | 57738ae40f33c8903e84863acb17cb7c919d69a3 (patch) | |
| tree | 0e28dccb8e891222e737a4dcaac333aaf821a499 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 16eb48c62bd3ff1a523cd1d59591e694bd60277a (diff) | |
| download | lwn-57738ae40f33c8903e84863acb17cb7c919d69a3.tar.gz lwn-57738ae40f33c8903e84863acb17cb7c919d69a3.zip | |
drm/amd/display: do not dereference on NULL
WARN_ON() will not kill the process so the second WARN_ON()
will try to dereference NULL pointer.
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index f14700a0515a..4fd6f4a7d392 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -9013,7 +9013,10 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) } status = dc_stream_get_status(dm_new_crtc_state->stream); - WARN_ON(!status); + + if (WARN_ON(!status)) + continue; + WARN_ON(!status->plane_count); /* |