Index: linux-2.6.18-128.1.6/fs/ext4/mballoc.c
===================================================================
--- linux-2.6.18-128.1.6.orig/fs/ext4/mballoc.c
+++ linux-2.6.18-128.1.6/fs/ext4/mballoc.c
@@ -4507,7 +4507,7 @@ static void ext4_mb_add_n_trim(struct ex
 						pa_inode_list) {
 		spin_lock(&tmp_pa->pa_lock);
 		if (tmp_pa->pa_deleted) {
-			spin_unlock(&pa->pa_lock);
+			spin_unlock(&tmp_pa->pa_lock);
 			continue;
 		}
 		if (!added && pa->pa_free < tmp_pa->pa_free) {