btrfs: fix memory leak in update_space_info failure path
authorJeff Mahoney <jeffm@suse.com>
Wed, 17 May 2017 13:49:37 +0000 (09:49 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 14 Jun 2017 13:07:46 +0000 (15:07 +0200)
commit5ca9daf72226d7486925e8672f6841cfdf37b33e
tree74fb874fe335dac28d754db99e49c2e42c55415f
parent6bc3d6a6332f49ccb3a74de28758b1637d214db8
btrfs: fix memory leak in update_space_info failure path

commit 896533a7da929136d0432713f02a3edffece2826 upstream.

If we fail to add the space_info kobject, we'll leak the memory
for the percpu counter.

Fixes: 6ab0a2029c (btrfs: publish allocation data in sysfs)
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/btrfs/extent-tree.c