From: Zhaolei <zhaolei@cn.fujitsu.com>
Date: Wed, 5 Aug 2015 10:00:02 +0000 (+0800)
Subject: btrfs: Error handle for get_ref_objectid_v0() in relocate_block_group()
X-Git-Tag: omap-for-v4.3/fixes-rc1~86^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4b3576e450a1539492e26e2d7b1e2e69578c032e;p=pandora-kernel.git

btrfs: Error handle for get_ref_objectid_v0() in relocate_block_group()

We need error checking code for get_ref_objectid_v0() in
relocate_block_group(), to avoid unpredictable result, especially
for accessing uninitialized value(when function failed) after
this line.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

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