--- a/sys/dev/drm/i915/i915_gem.c
+++ b/sys/dev/drm/i915/i915_gem.c
@@ -313,6 +313,7 @@
 #endif
 		if (IS_ERR(page)) {
 			err = PTR_ERR(page);
+			VM_OBJECT_UNLOCK(vm_obj);
 			goto err_phys;
 		}