diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 977f1a5e11a52c90fb9f044a5b8a7e9266f642f4..0a68e8d711a1aa8de476a01ec3af1661be86492d 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -181,7 +181,9 @@ static void radeon_set_filp_rights(struct drm_device *dev,
 				   struct drm_file *applier,
 				   uint32_t *value)
 {
-	mutex_lock(&dev->struct_mutex);
+	struct radeon_device *rdev = dev->dev_private;
+
+	mutex_lock(&rdev->gem.mutex);
 	if (*value == 1) {
 		/* wants rights */
 		if (!*owner)
@@ -192,7 +194,7 @@ static void radeon_set_filp_rights(struct drm_device *dev,
 			*owner = NULL;
 	}
 	*value = *owner == applier ? 1 : 0;
-	mutex_unlock(&dev->struct_mutex);
+	mutex_unlock(&rdev->gem.mutex);
 }
 
 /*
@@ -724,10 +726,14 @@ void radeon_driver_preclose_kms(struct drm_device *dev,
 				struct drm_file *file_priv)
 {
 	struct radeon_device *rdev = dev->dev_private;
+
+	mutex_lock(&rdev->gem.mutex);
 	if (rdev->hyperz_filp == file_priv)
 		rdev->hyperz_filp = NULL;
 	if (rdev->cmask_filp == file_priv)
 		rdev->cmask_filp = NULL;
+	mutex_unlock(&rdev->gem.mutex);
+
 	radeon_uvd_free_handles(rdev, file_priv);
 	radeon_vce_free_handles(rdev, file_priv);
 }