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cfg80211: fix crash in cfg80211_set_freq()

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Since wdev can be NULL, check it before dereferencing it

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2010-05-15 15:46:17 +02:00 committed by John W. Linville
parent b9f2e39d4c
commit 9fbc630c89
1 changed files with 1 additions and 1 deletions
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2
net/wireless/chan.c
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@ -50,7 +50,7 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
struct ieee80211_channel *chan;
int result;
if (wdev->iftype == NL80211_IFTYPE_MONITOR)
if (wdev && wdev->iftype == NL80211_IFTYPE_MONITOR)
wdev = NULL;
if (wdev) {