6LoWPAN: call dev_put() on error in lowpan_newlink()
Dan Carpenter [Tue, 30 Aug 2011 03:51:09 +0000 (03:51 +0000)]
We should release the dev_hold() on error before returning here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ieee802154/6lowpan.c

index 5dc0489..f0d1536 100644 (file)
@@ -793,8 +793,11 @@ static int lowpan_newlink(struct net *src_net, struct net_device *dev,
        mutex_init(&lowpan_dev_info(dev)->dev_list_mtx);
 
        entry = kzalloc(sizeof(struct lowpan_dev_record), GFP_KERNEL);
-       if (!entry)
+       if (!entry) {
+               dev_put(real_dev);
+               lowpan_dev_info(dev)->real_dev = NULL;
                return -ENOMEM;
+       }
 
        entry->ldev = dev;