From: Li Zefan <lizf@cn.fujitsu.com>
Date: Thu, 14 Jul 2011 03:18:03 +0000 (+0000)
Subject: Btrfs: clean up search_extent_mapping()
X-Git-Tag: v3.1-rc1~82^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7e016a038e829c7d1271e1d57b8002860bbdf0db;p=pandora-kernel.git

Btrfs: clean up search_extent_mapping()

rb_node returned by __tree_search() can be a valid pointer or NULL,
but won't be some errno.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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