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authorFelix Fietkau <nbd@openwrt.org>2010-05-15 17:46:17 +0400
committerJohn W. Linville <linville@tuxdriver.com>2010-05-21 22:40:00 +0400
commit9fbc630c89fd210e15ffe84fd6e968a2d39000b0 (patch)
tree7cd2283f43fcae0ce5779cffd976579977757989 /net/wireless
parentb9f2e39d4c2bcd8e94f73ae14450d7764f930a41 (diff)
downloadlinux-9fbc630c89fd210e15ffe84fd6e968a2d39000b0.tar.xz
cfg80211: fix crash in cfg80211_set_freq()
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>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/chan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index d92d088026bf..b01a6f6397d7 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -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) {