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s390/qeth: fix early exit from error path
authorJulian Wiedmann <jwi@linux.vnet.ibm.com>
Wed, 18 Oct 2017 15:40:17 +0000 (17:40 +0200)
committerDavid S. Miller <davem@davemloft.net>
Fri, 20 Oct 2017 12:11:04 +0000 (13:11 +0100)
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>
drivers/s390/net/qeth_l3_main.c

index 270ac95..aadd384 100644 (file)
@@ -1553,7 +1553,7 @@ 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);
 
@@ -1567,6 +1567,7 @@ 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);
 }
 
@@ -1591,7 +1592,7 @@ 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);
 
@@ -1606,6 +1607,7 @@ 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 */
 }