From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Sun, 4 Aug 2013 18:58:57 +0000 (+0100)
Subject: Btrfs: fix inode leak on kmalloc failure in tree-log.c
X-Git-Tag: v3.12-rc2~5^2~98
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2bac325ea8f117636e6601e66a67d2df58974610;p=kernel%2Fkernel-generic.git

Btrfs: fix inode leak on kmalloc failure in tree-log.c

In tree-log.c:replay_one_name(), if memory allocation for
the name fails, ensure we iput the dir inode we got before
before we return.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index ff60d89..6797a93 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1536,8 +1536,10 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
 
 	name_len = btrfs_dir_name_len(eb, di);
 	name = kmalloc(name_len, GFP_NOFS);
-	if (!name)
-		return -ENOMEM;
+	if (!name) {
+		ret = -ENOMEM;
+		goto out;
+	}
 
 	log_type = btrfs_dir_type(eb, di);
 	read_extent_buffer(eb, name, (unsigned long)(di + 1),