diff --git a/[refs] b/[refs]
index c7b0edd95974..b61980e16b1d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0a819515fc346b4e79d6e3fc01d837a660452c74
+refs/heads/master: 795f1426b484ddfc136e723a26bfd6a46c8ab085
diff --git a/trunk/drivers/gpu/drm/ast/ast_drv.c b/trunk/drivers/gpu/drm/ast/ast_drv.c
index 2d2c2f8d6dc6..df0d0a08097a 100644
--- a/trunk/drivers/gpu/drm/ast/ast_drv.c
+++ b/trunk/drivers/gpu/drm/ast/ast_drv.c
@@ -94,9 +94,9 @@ static int ast_drm_thaw(struct drm_device *dev)
 	ast_post_gpu(dev);
 
 	drm_mode_config_reset(dev);
-	mutex_lock(&dev->mode_config.mutex);
+	drm_modeset_lock_all(dev);
 	drm_helper_resume_force_mode(dev);
-	mutex_unlock(&dev->mode_config.mutex);
+	drm_modeset_unlock_all(dev);
 
 	console_lock();
 	ast_fbdev_set_suspend(dev, 0);