drm/drm_crtc: return -EFAULT on copy_to_user errors

[safe/jmp/linux-2.6] / drivers / gpu / drm / drm_crtc.c

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 994d23b..57cea01 100644 (file)
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1840,8 +1840,10 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
 
                ret = copy_from_user(clips, clips_ptr,
                                     num_clips * sizeof(*clips));
-               if (ret)
+               if (ret) {
+                       ret = -EFAULT;
                        goto out_err2;
+               }
        }
 
        if (fb->funcs->dirty) {