netdev - [PATCH 4/4] mac80211: avoid null ptr deref in ieee80211_ibss_add

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Message-ID: <20070530183033.GG3610@tuxdriver.com>
Date:	Wed, 30 May 2007 14:30:33 -0400
From:	"John W. Linville" <linville@...driver.com>
To:	davem@...emloft.net
Cc:	linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH 4/4] mac80211: avoid null ptr deref in ieee80211_ibss_add_sta

From: John W. Linville <linville@...driver.com>

avoid sdata null pointer dereference in ieee80211_ibss_add_sta.

Signed-off-by: John W. Linville <linville@...driver.com>
---
 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
linville@...driver.com
-
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