From b9aa55bed1c1a3a329da31884b643c62d57ebb21 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Tue, 14 May 2013 02:12:15 +0000
Subject: [PATCH] Btrfs: return errno if possible when we fail to allocate
 memory

We need to set return value explicitly, otherwise we'll lose the error
value.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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Reading git-format-patch failed