gfs2_meta: ->mount() can get NULL dev_name
authorAl Viro <viro@zeniv.linux.org.uk>
Sat, 13 Oct 2018 04:19:13 +0000 (00:19 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Sat, 13 Oct 2018 04:19:13 +0000 (00:19 -0400)
commit3df629d873f8683af6f0d34dfc743f637966d483
treed6b4a0f09437f29bec1648deafce440fbc5f87dd
parent74dd7c97ea2ab08b41925ab2f472db573accda89
gfs2_meta: ->mount() can get NULL dev_name

get in sync with mount_bdev() handling of the same

Reported-by: syzbot+c54f8e94e6bba03b04e9@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/gfs2/ops_fstype.c