tree f3c771837e17d7bcbdfe5b6c9f0911d85c90ca16
parent c071fcfdb60e7abbe95e02460005d6bca165bf24
author Wang Cong <xiyou.wangcong@gmail.com> 1232552956 -0500
committer Chris Mason <chris.mason@oracle.com> 1232552956 -0500

Btrfs: cleanup fs/btrfs/super.c::btrfs_control_ioctl()

- Remove the unused local variable 'len';
- Check return value of kmalloc().

Signed-off-by: Wang Cong <wangcong@zeuux.org>
Signed-off-by: Chris Mason <chris.mason@oracle.com>