From: Zhao Lei <zhaolei@cn.fujitsu.com>
Date: Fri, 12 Jun 2015 12:36:58 +0000 (+0800)
Subject: btrfs: add error handling for scrub_workers_get()
X-Git-Tag: omap-for-v4.2/fixes-rc2-v2~20^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e82afc52abff07a4acbc90f899598ebafb662831;p=pandora-kernel.git

btrfs: add error handling for scrub_workers_get()

Although it is a rare case, we'd better free previous allocated
memory on error.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
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