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-rw-r--r--drivers/gpu/drm/drm_drawable.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_drawable.c b/drivers/gpu/drm/drm_drawable.c
index 1839c57663c..70b15d1b8f5 100644
--- a/drivers/gpu/drm/drm_drawable.c
+++ b/drivers/gpu/drm/drm_drawable.c
@@ -111,7 +111,9 @@ int drm_update_drawable_info(struct drm_device *dev, void *data, struct drm_file
switch (update->type) {
case DRM_DRAWABLE_CLIPRECTS:
- if (update->num != info->num_rects) {
+ if (update->num == 0)
+ rects = NULL;
+ else if (update->num != info->num_rects) {
rects = drm_alloc(update->num * sizeof(struct drm_clip_rect),
DRM_MEM_BUFS);
} else