[ATALK]: Add missing dev_hold() to atrtr_create().

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/appletalk/ddp.c

@@ -573,6 +573,7 @@ static int atrtr_create(struct rtentry *r, struct net_device *devhint)
 
 	/* Fill in the routing entry */
 	rt->target  = ta->sat_addr;
+	dev_hold(devhint);
 	rt->dev     = devhint;
 	rt->flags   = r->rt_flags;
 	rt->gateway = ga->sat_addr;