decnet: avoid touching device refcount in dn_dev_by_index()
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 6e1f085..d82694d 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -600,15 +600,17 @@
dev_put(dev);
}
+/*
+ * Called with RTNL
+ */
static struct dn_dev *dn_dev_by_index(int ifindex)
{
struct net_device *dev;
struct dn_dev *dn_dev = NULL;
- dev = dev_get_by_index(&init_net, ifindex);
- if (dev) {
+
+ dev = __dev_get_by_index(&init_net, ifindex);
+ if (dev)
dn_dev = dev->dn_ptr;
- dev_put(dev);
- }
return dn_dev;
}