btrfs-progs: use correct the return value
authorFan Chengniang <fancn.fnst@cn.fujitsu.com>
Tue, 10 Feb 2015 10:23:13 +0000 (18:23 +0800)
committerDavid Sterba <dsterba@suse.cz>
Fri, 27 Feb 2015 16:27:26 +0000 (17:27 +0100)
commit7a7d5f019f9998912ead63d3491407d2218e9874
treebe6869f0f6e9a441c14dc70c4be4cda4c18deac6
parentddb0ba2dad63898020df7f6e708d382155229be0
btrfs-progs: use correct the return value

The return values 12 and 13 are not used spectially except as return
value. No description and definition about them. so I change them to
generic errno.

Signed-off-by: Fan Chengniang <fancn.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
qgroup.c