[DECNET]: Fix refcount

From: Patrick Caulfield <patrick@tykepenguin.com>

This patch fixes a bug in the reference counting for the default
DECnet device.

If the device is changed, then the new device had its refcount
decremented rather than the old one!

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index d2ae9893ca17..a26ff9f44576 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -620,7 +620,7 @@ int dn_dev_set_default(struct net_device *dev, int force)
         }
         write_unlock(&dndev_lock);
         if (old)
-                dev_put(dev);
+                dev_put(old);
         return rv;
 }