diff options
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index cba8c8bb789c..d4f8fa5b3c18 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -2580,14 +2580,9 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev, if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; - drm_modeset_lock_all(dev); fb = drm_framebuffer_lookup(dev, r->fb_id); - if (!fb) { - ret = -EINVAL; - goto out_err1; - } - /* fb is protect by the mode_config lock, so drop the ref immediately */ - drm_framebuffer_unreference(fb); + if (!fb) + return -EINVAL; num_clips = r->num_clips; clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; @@ -2625,17 +2620,19 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev, } if (fb->funcs->dirty) { + drm_modeset_lock_all(dev); ret = fb->funcs->dirty(fb, file_priv, flags, r->color, clips, num_clips); + drm_modeset_unlock_all(dev); } else { ret = -ENOSYS; - goto out_err2; } out_err2: kfree(clips); out_err1: - drm_modeset_unlock_all(dev); + drm_framebuffer_unreference(fb); + return ret; } |