From 018642a1f197887058e97291460b890d296e8953 Mon Sep 17 00:00:00 2001
From: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Date: Tue, 29 May 2012 18:10:13 +0900
Subject: [PATCH] Btrfs: return value of btrfs_read_buffer is checked correctly

btrfs_read_buffer() has the possibility of returning the error.
Therefore, I add the code in which the return value of btrfs_read_buffer()
is checked.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
---
Reading git-format-patch failed