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Commit 2f3201b2 authored by Kangjie Lu's avatar Kangjie Lu Committed by Greg Kroah-Hartman
Browse files

net: cw1200: fix a NULL pointer dereference 



[ Upstream commit 0ed2a005347400500a39ea7c7318f1fea57fb3ca ]

In case create_singlethread_workqueue fails, the fix free the
hardware and returns NULL to avoid NULL pointer dereference.

Signed-off-by: default avatarKangjie Lu <kjlu@umn.edu>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent bc2c8535

drivers/net/wireless/st/cw1200/main.c

+5 −0
Original line number Diff line number Diff line
@@ -345,6 +345,11 @@ static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr, 
	mutex_init(&priv->wsm_cmd_mux);

	mutex_init(&priv->conf_mutex);

	priv->workqueue = create_singlethread_workqueue("cw1200_wq");

	if (!priv->workqueue) {

		ieee80211_free_hw(hw);

		return NULL;

	}



	sema_init(&priv->scan.lock, 1);

	INIT_WORK(&priv->scan.work, cw1200_scan_work);

	INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);