Btrfs: fix memory leak in name_cache_insert()

We should free name_cache_entry before returning from the
error handling code.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 5445454..321b7fb 100644 (file)
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -1814,8 +1814,10 @@ static int name_cache_insert(struct send_ctx *sctx,
                        (unsigned long)nce->ino);
        if (!nce_head) {
                nce_head = kmalloc(sizeof(*nce_head), GFP_NOFS);
-               if (!nce_head)
+               if (!nce_head) {
+                       kfree(nce);
                        return -ENOMEM;
+               }
                INIT_LIST_HEAD(nce_head);
 
                ret = radix_tree_insert(&sctx->name_cache, nce->ino, nce_head);