fix oops in fs/9p late mount failure
authorAl Viro <viro@zeniv.linux.org.uk>
Mon, 25 Jan 2010 11:16:19 +0000 (06:16 -0500)
committerAl Viro <viro@zeniv.linux.org.uk>
Wed, 27 Jan 2010 03:22:27 +0000 (22:22 -0500)
if 9P ->get_sb() fails late (at root inode or root dentry
allocation), we'll hit its ->kill_sb() with NULL ->s_root

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

No differences found