afs: Fix comment in afs_do_lookup()

Fix the comment in afs_do_lookup() that says that slot 0 is used for the
fid being looked up and slot 1 is used for the directory.  It's actually
done the other way round.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org

fs/afs/dir.c

@@ -807,8 +807,8 @@ static struct inode *afs_do_lookup(struct inode *dir, struct dentry *dentry,
 		cookie->fids[i].vid = dvnode->fid.vid;
 	cookie->ctx.actor = afs_lookup_filldir;
 	cookie->name = dentry->d_name;
-	cookie->nr_fids = 2; /* slot 0 is saved for the fid we actually want
-			      * and slot 1 for the directory */
+	cookie->nr_fids = 2; /* slot 1 is saved for the fid we actually want
+			      * and slot 0 for the directory */
 
 	if (!afs_server_supports_ibulk(dvnode))
 		cookie->one_only = true;