net: fix eth device unregistration

We register a device in eth_register, thus we have to unregister it in
eth_unregister. Also, if the device we unregister is the current device,
we have to set the current eth_device to NULL so that it isn't used anymore.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/eth.c b/net/eth.c
index 621cb59351..20fdbf4102 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -244,8 +244,11 @@ int eth_register(struct eth_device *edev)
 
 void eth_unregister(struct eth_device *edev)
 {
-	dev_remove_parameters(&edev->dev);
+	if (edev == eth_current)
+		eth_current = NULL;
 
+	dev_remove_parameters(&edev->dev);
+	unregister_device(&edev->dev);
 	list_del(&edev->list);
 }