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

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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>
This commit is contained in:
Ander Conselvan de Oliveira 2015-03-30 14:05:43 +03:00 committed by Daniel Vetter
parent 8a5c0bde54
commit a0211bb482
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/drm_atomic.c
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@ -173,6 +173,9 @@ EXPORT_SYMBOL(drm_atomic_state_clear);
*/ */
void drm_atomic_state_free(struct drm_atomic_state *state) void drm_atomic_state_free(struct drm_atomic_state *state)
{ {
if (!state)
return;
drm_atomic_state_clear(state); drm_atomic_state_clear(state);
DRM_DEBUG_ATOMIC("Freeing atomic state %p\n", state); DRM_DEBUG_ATOMIC("Freeing atomic state %p\n", state);