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 13:06:02 +0000 (15:06 +0200)
commit66d6448475c682099e4dd3c6b4ef6e94248c0b2e
tree2769f88a18ac572fcbd6d5b8c8a4e4b68691b1c8
parent4d15ab90ec2bece7361b6afebebfbf83a381a529
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