From 932c1329acebc03ef5efa3647c9c3a967b59d0c4 Mon Sep 17 00:00:00 2001
From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Date: Fri, 19 Jun 2009 17:00:08 +0400
Subject: nl802154: fix Oops in ieee802154_nl_get_dev
ieee802154_nl_get_dev() lacks check for the existance of the device
that was returned by dev_get_XXX, thus resulting in Oops for non-existing
devices. Fix it.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
net/ieee802154/netlink.c | 3 +++
1 file changed, 3 insertions(+)
(limited to 'net/ieee802154')
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 105ad10876af..332b947ae812 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -276,6 +276,9 @@ static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
else
return NULL;
+ if (!dev)
+ return NULL;
+
if (dev->type != ARPHRD_IEEE802154) {
dev_put(dev);
return NULL;
--
cgit