Patch "qeth: delete napi struct when removing a qeth device" has been added to the 4.6-stable tree

This is a note to let you know that I've just added the patch titled

qeth: delete napi struct when removing a qeth device

to the 4.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
qeth-delete-napi-struct-when-removing-a-qeth-device.patch
and it can be found in the queue-4.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Ursula Braun <[email protected]>
Date: Mon, 4 Jul 2016 14:07:16 +0200
Subject: qeth: delete napi struct when removing a qeth device

From: Ursula Braun <[email protected]>

commit 7831b4ff0d926e0deeaabef9db8800ed069a2757 upstream.

A qeth_card contains a napi_struct linked to the net_device during device probing. This struct must be deleted when removing the qeth device, otherwise Panic on oops can occur when qeth devices are repeatedly removed and added.

---
 drivers/s390/net/qeth_l2_main.c |    1 +
 drivers/s390/net/qeth_l3_main.c |    1 +
 2 files changed, 2 insertions(+)

@@ -1051,6 +1051,7 @@ static void qeth_l2_remove_device(struct
 		qeth_l2_set_offline(cgdev);
 
 	if (card->dev) {
+		netif_napi_del(&card->napi);
 		unregister_netdev(card->dev);
 		card->dev = NULL;
 	}

@@ -3226,6 +3226,7 @@ static void qeth_l3_remove_device(struct
 		qeth_l3_set_offline(cgdev);
 
 	if (card->dev) {
+		netif_napi_del(&card->napi);
 		unregister_netdev(card->dev);
 		card->dev = NULL;
 	}

Patches currently in stable-queue which might be from [email protected] are

queue-4.6/qeth-delete-napi-struct-when-removing-a-qeth-device.patch