From 32cb787a1ade2d7b4e2b3c1278e37164a88321e0 Mon Sep 17 00:00:00 2001
From: Oliver Hartkopp <oliver@hartkopp.net>
Date: Tue, 2 Feb 2010 07:21:34 -0800
Subject: [PATCH] --- yaml --- r: 183776 b: refs/heads/master c:
 8b64056dacf6ec81986d63dff96fca039fe95f6e h: refs/heads/master v: v3

---
 [refs]                 | 2 +-
 trunk/net/can/af_can.c | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 7fdea9e15245..3d0aa04ba895 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 44298ec0f20c45b9be96e181976aef1152d373b2
+refs/heads/master: 8b64056dacf6ec81986d63dff96fca039fe95f6e
diff --git a/trunk/net/can/af_can.c b/trunk/net/can/af_can.c
index bc18b084ffdb..702be5a2c956 100644
--- a/trunk/net/can/af_can.c
+++ b/trunk/net/can/af_can.c
@@ -415,6 +415,9 @@ int can_rx_register(struct net_device *dev, canid_t can_id, canid_t mask,
 
 	/* insert new receiver  (dev,canid,mask) -> (func,data) */
 
+	if (dev && dev->type != ARPHRD_CAN)
+		return -ENODEV;
+
 	r = kmem_cache_alloc(rcv_cache, GFP_KERNEL);
 	if (!r)
 		return -ENOMEM;
@@ -478,6 +481,9 @@ void can_rx_unregister(struct net_device *dev, canid_t can_id, canid_t mask,
 	struct hlist_node *next;
 	struct dev_rcv_lists *d;
 
+	if (dev && dev->type != ARPHRD_CAN)
+		return;
+
 	spin_lock(&can_rcvlists_lock);
 
 	d = find_dev_rcv_lists(dev);