link_path_walk: handle get_link() returning ERR_PTR() immediately
authorAl Viro <viro@zeniv.linux.org.uk>
Sat, 18 Apr 2015 23:10:36 +0000 (19:10 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Mon, 11 May 2015 02:19:55 +0000 (22:19 -0400)
commitb0c24c3bdf237182b2f043bfee68bf886b0c9ad3
tree8949499c8abc350430fb772d0e86c1f82d7c6293
parent95fa25d9f2e4898c62d2732f765c42eac0999285
link_path_walk: handle get_link() returning ERR_PTR() immediately

If we get ERR_PTR() from get_link(), we are guaranteed to get err != 0
when we break out of do-while, so we are going to hit if (err) return err;
shortly after it.  Pull that into the if (IS_ERR(s)) body.

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