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Commit 8f1d2d2b authored by John W. Linville's avatar John W. Linville
Browse files

rtl8180: avoid potential NULL deref in rtl8180_beacon_work 



ieee80211_beacon_get can return NULL...

Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
Cc: stable@kernel.org
parent c5d2711c

drivers/net/wireless/rtl818x/rtl8180_dev.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -695,6 +695,8 @@ static void rtl8180_beacon_work(struct work_struct *work) 




	/* grab a fresh beacon */

	/* grab a fresh beacon */

	skb = ieee80211_beacon_get(dev, vif);

	skb = ieee80211_beacon_get(dev, vif);

	if (!skb)

		goto resched;





	/*

	/*

	 * update beacon timestamp w/ TSF value

	 * update beacon timestamp w/ TSF value