diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 9492e7ec9d9d..fd3e9a13b04f 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -3699,12 +3699,12 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, page_flip->reserved != 0) return -EINVAL; - drm_modeset_lock_all(dev); obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) - goto out; + return -EINVAL; crtc = obj_to_crtc(obj); + mutex_lock(&crtc->mutex); if (crtc->fb == NULL) { /* The framebuffer is currently unbound, presumably * due to a hotplug event, that userspace has not @@ -3786,7 +3786,8 @@ out: drm_framebuffer_unreference(fb); if (old_fb) drm_framebuffer_unreference(old_fb); - drm_modeset_unlock_all(dev); + mutex_unlock(&crtc->mutex); + return ret; } |