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path: root/drivers/gpu/drm/drm_crtc.c
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Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
-rw-r--r--drivers/gpu/drm/drm_crtc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 405c63b9d539..8323fc389840 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1873,6 +1873,10 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1873 } 1873 }
1874 1874
1875 if (num_clips && clips_ptr) { 1875 if (num_clips && clips_ptr) {
1876 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
1877 ret = -EINVAL;
1878 goto out_err1;
1879 }
1876 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); 1880 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
1877 if (!clips) { 1881 if (!clips) {
1878 ret = -ENOMEM; 1882 ret = -ENOMEM;