Index: linux-stage/fs/ext4/mballoc.c
===================================================================
--- linux-stage.orig/fs/ext4/mballoc.c
+++ linux-stage/fs/ext4/mballoc.c
@@ -4825,6 +4825,11 @@ do_more:
 		 * be used until this transaction is committed
 		 */
 		new_entry = kmem_cache_alloc(ext4_free_data_cachep, GFP_NOFS);
+ 		if (!new_entry) {
+ 			ext4_mb_release_desc(&e4b);
+ 			err = -ENOMEM;
+ 			goto error_return;
+ 		}
 		new_entry->efd_start_blk = bit;
 		new_entry->efd_group  = block_group;
 		new_entry->efd_count = count;