afs: mntput called before dput

dput must be called before mntput here.
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Acked-By: David Howells <dhowells@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/afs/mntpt.c

@@ -235,8 +235,8 @@ static void *afs_mntpt_follow_link(struct dentry *dentry, struct nameidata *nd)
 	err = do_add_mount(newmnt, nd, MNT_SHRINKABLE, &afs_vfsmounts);
 	switch (err) {
 	case 0:
-		mntput(nd->mnt);
 		dput(nd->dentry);
+		mntput(nd->mnt);
 		nd->mnt = newmnt;
 		nd->dentry = dget(newmnt->mnt_root);
 		schedule_delayed_work(&afs_mntpt_expiry_timer,