2.6.35-stable review patch.  If anyone has any objections, please let us know.

------------------

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

commit 8f1d2d2be73a98c21e68fe2a26f633892d4abdd1 upstream.

ieee80211_beacon_get can return NULL...

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/net/wireless/rtl818x/rtl8180_dev.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/wireless/rtl818x/rtl8180_dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c
@@ -688,6 +688,8 @@ void rtl8180_beacon_work(struct work_str
 
 	/* grab a fresh beacon */
 	skb = ieee80211_beacon_get(dev, vif);
+	if (!skb)
+		goto resched;
 
 	/*
 	 * update beacon timestamp w/ TSF value


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