From bf9f0884fe92f1ed70575ab71d1c4113728a12b4 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 9 Sep 2016 13:32:42 +0200
Subject: [PATCH] Revert "can: fix handling of unmodifiable configuration
 options fix"

This reverts commit 6f8f768a3586b6fbd50e249e7fe4f964a6994685 which was
bce271f255dae8335dc4d2ee2c4531e09cc67f5a upstream.

It was applied incorrectly, and isn't needed for 3.14-stable.

Reported-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
---
 drivers/net/can/dev.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index fa78e45a2beeb..de333c740203d 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -665,9 +665,6 @@ static int can_changelink(struct net_device *dev,
 		}
 	}
 
-	if (!data)
-		return 0;
-
 	if (data[IFLA_CAN_CTRLMODE]) {
 		struct can_ctrlmode *cm;