Btrfs: fix memory leak of log roots

[cascardo/linux.git] / fs / btrfs / tree-log.c

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index e8b7a68..8e85e0e 100644 (file)
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2466,8 +2466,10 @@ static void free_log_tree(struct btrfs_trans_handle *trans,
                .process_func = process_one_buffer
        };
 
-       ret = walk_log_tree(trans, log, &wc);
-       BUG_ON(ret);
+       if (trans) {
+               ret = walk_log_tree(trans, log, &wc);
+               BUG_ON(ret);
+       }
 
        while (1) {
                ret = find_first_extent_bit(&log->dirty_log_pages,