From: Josef Bacik <josef@redhat.com>
Date: Wed, 16 Mar 2011 17:59:32 +0000 (-0400)
Subject: Btrfs: check return value of btrfs_search_slot properly
X-Git-Tag: v3.0~816^2~69
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=41415730a1050499fbd63b3f7dd59b3a4c3bb91a;p=platform%2Fkernel%2Flinux-amlogic.git

Btrfs: check return value of btrfs_search_slot properly

Doing an audit of where we use btrfs_search_slot only showed one place where we
don't check the return value of btrfs_search_slot properly.  Just fix
mark_extent_written to see if btrfs_search_slot failed and act accordingly.
Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
---

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 3786eca..a85b044 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -608,6 +608,8 @@ again:
 	key.offset = split;
 
 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);
+	if (ret < 0)
+		goto out;
 	if (ret > 0 && path->slots[0] > 0)
 		path->slots[0]--;