From: Felix Fietkau <nbd@openwrt.org>
To: linux-wireless@vger.kernel.org
Cc: linville@tuxdriver.com, johannes@sipsolutions.net
Subject: [PATCH] cfg80211: fix crash in cfg80211_set_freq()
Date: Sat, 15 May 2010 15:46:17 +0200 [thread overview]
Message-ID: <1273931177-26887-1-git-send-email-nbd@openwrt.org> (raw)
Since wdev can be NULL, check it before dereferencing it
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---
net/wireless/chan.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index d92d088..b01a6f6 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) {
--
1.6.4.2
reply other threads:[~2010-05-15 13:46 UTC|newest]
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