rocker: fix an error code

We intended to return PTR_ERR() here instead of 1.

Fixes: 1f9993f6825f ('rocker: fix a neigh entry leak issue')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/rocker/rocker_ofdpa.c b/drivers/net/ethernet/rocker/rocker_ofdpa.c
index 099008a..07218c3 100644
--- a/drivers/net/ethernet/rocker/rocker_ofdpa.c
+++ b/drivers/net/ethernet/rocker/rocker_ofdpa.c
@@ -1449,7 +1449,7 @@
 	if (!n) {
 		n = neigh_create(&arp_tbl, &ip_addr, dev);
 		if (IS_ERR(n))
-			return IS_ERR(n);
+			return PTR_ERR(n);
 	}
 
 	/* If the neigh is already resolved, then go ahead and