Btrfs: clean up search_extent_mapping()
authorLi Zefan <lizf@cn.fujitsu.com>
Thu, 14 Jul 2011 03:18:03 +0000 (03:18 +0000)
committerChris Mason <chris.mason@oracle.com>
Mon, 1 Aug 2011 18:30:49 +0000 (14:30 -0400)
commit7e016a038e829c7d1271e1d57b8002860bbdf0db
tree3698e7d02602b791f783a2b8877651f538db3543
parent85d85a743da894029723e002eb556ceeebc03658
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>
fs/btrfs/extent_map.c