From: Zhao Lei <zhaolei@cn.fujitsu.com>
Date: Thu, 25 Mar 2010 12:34:49 +0000 (+0000)
Subject: Btrfs: Add error handle for btrfs_search_slot() in btrfs_read_chunk_tree()
X-Git-Tag: v2.6.34-rc4~3^2~13
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ab59381ea43f81c977cbd09add26950aaf6cb9fe;p=profile%2Fivi%2Fkernel-x86-ivi.git

Btrfs: Add error handle for btrfs_search_slot() in btrfs_read_chunk_tree()

We need to check return value of btrfs_search_slot() in
btrfs_read_chunk_tree() and do corresponding error handing.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
---

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9df8e3f..c6c8009 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3389,6 +3389,8 @@ int btrfs_read_chunk_tree(struct btrfs_root *root)
 	key.type = 0;
 again:
 	ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
+	if (ret < 0)
+		goto error;
 	while (1) {
 		leaf = path->nodes[0];
 		slot = path->slots[0];