From: Miao Xie <miaox@cn.fujitsu.com>
Date: Wed, 5 Dec 2012 10:56:13 +0000 (+0000)
Subject: Btrfs: fix wrong return value of btrfs_truncate_page()
X-Git-Tag: v3.8-rc1~71^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac6a2b36f9fcfbe4865550afb6d333dec6b57578;p=pandora-kernel.git

Btrfs: fix wrong return value of btrfs_truncate_page()

ret variant may be set to 0 if we read page successfully, but it might be
released before we lock it again. On this case, if we fail to allocate a
new page, we will return 0, it is wrong, fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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