s390/qeth: fix early exit from error path

[ Upstream commit 83cf79a2 ]

When the allocation of the addr buffer fails, we need to free
our refcount on the inetdevice before returning.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/s390/net/qeth_l3_main.c

@@ -1593,7 +1593,7 @@ static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
 
 	addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV4);
 	if (!addr)
-		return;
+		goto out;
 
 	spin_lock_bh(&card->ip_lock);
 
@@ -1607,6 +1607,7 @@ static void qeth_l3_free_vlan_addresses4(struct qeth_card *card,
 	spin_unlock_bh(&card->ip_lock);
 
 	kfree(addr);
+out:
 	in_dev_put(in_dev);
 }
 
@@ -1631,7 +1632,7 @@ static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
 
 	addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
 	if (!addr)
-		return;
+		goto out;
 
 	spin_lock_bh(&card->ip_lock);
 
@@ -1646,6 +1647,7 @@ static void qeth_l3_free_vlan_addresses6(struct qeth_card *card,
 	spin_unlock_bh(&card->ip_lock);
 
 	kfree(addr);
+out:
 	in6_dev_put(in6_dev);
 #endif /* CONFIG_QETH_IPV6 */
 }