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drm/amd/amdgpu: Check stream in amdgpu_dm_commit_planes

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Reported by smatch:
amdgpu_dm.c:5637 amdgpu_dm_commit_planes() error: we previously assumed 'acrtc_state->stream' could be null
This seems to be checked for null pretty consistently elsewhere.

Signed-off-by: Ernst Sjöstrand <ernstp@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ernst Sjöstrand 2019-06-24 17:15:42 +02:00 committed by Alex Deucher
parent 70c5350a87
commit ed9656fbc8
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -5671,7 +5671,8 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
}
/* Update the planes if changed or disable if we don't have any. */
if (planes_count || acrtc_state->active_planes == 0) {
if ((planes_count || acrtc_state->active_planes == 0) &&
acrtc_state->stream) {
if (new_pcrtc_state->mode_changed) {
bundle->stream_update.src = acrtc_state->stream->src;
bundle->stream_update.dst = acrtc_state->stream->dst;