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Commit 92e44948 authored by Teemu Paasikivi's avatar Teemu Paasikivi Committed by John W. Linville
Browse files

nl80211: Fix exit from nl80211_set_power_save 



If interface does not existk, when nl80211_set_power_save is called, (eg.
module has been unloaded) it has been causing kernel panic. Added new
goto target to avoid crash if get_rdev_dev_by_info_ifindex does not
return dev and rdev pointers.

Signed-off-by: default avatarTeemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 56af3268

net/wireless/nl80211.c

+2 −1
Original line number Diff line number Diff line
@@ -4990,7 +4990,7 @@ static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) 


	err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);

	if (err)

		goto unlock_rdev;

		goto unlock_rtnl;



	wdev = dev->ieee80211_ptr;
@@ -5014,6 +5014,7 @@ static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) 
unlock_rdev:

	cfg80211_unlock_rdev(rdev);

	dev_put(dev);

unlock_rtnl:

	rtnl_unlock();



out: