drm/atomic: Don't try to free a NULL state

Consistently with other free functions, handle the NULL case without oopsing. Cc: dri-devel@lists.freedesktop.org Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
git-mirror · Mar 30, 2015 · a0211bb · a0211bb
1 parent 8a5c0bd
commit a0211bb
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
@@ -173,6 +173,9 @@ EXPORT_SYMBOL(drm_atomic_state_clear);
  */
 void drm_atomic_state_free(struct drm_atomic_state *state)
 {
+	if (!state)
+		return;
+
 	drm_atomic_state_clear(state);
 
 	DRM_DEBUG_ATOMIC("Freeing atomic state %p\n", state);