diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index e90d80a8a9e3..290cfe11e790 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3216,6 +3216,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 			ret = btrfs_alloc_log_tree_node(trans, log_root_tree);
 			if (ret) {
 				mutex_unlock(&fs_info->tree_root->log_mutex);
+				blk_finish_plug(&plug);
 				goto out;
 			}
 		}