Subject: [PATCH 4/4] mac80211: avoid null ptr deref in ieee80211_ibss_add_sta

From: "John W. Linville" <[email-masked]>
Date: Wed, 30 May 2007 14:30:33 -0400

From: John W. Linville <[email-masked]>

avoid sdata null pointer dereference in ieee80211_ibss_add_sta.

Signed-off-by: John W. Linville <[email-masked]>
---
 net/mac80211/ieee80211_sta.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index dbac858..9f30ae4 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -2997,7 +2997,7 @@ struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct sta_info *sta;
-	struct ieee80211_sub_if_data *sdata = NULL;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
 	/* TODO: Could consider removing the least recently used entry and
 	 * allow new one to be added. */
-- 
1.5.0.6

-- 
John W. Linville
[email-masked]