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

net: cw1200: fix a NULL pointer dereference

[ Upstream commit 0ed2a005 ]

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
...@@ -345,6 +345,11 @@ static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr, ...@@ -345,6 +345,11 @@ static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
mutex_init(&priv->wsm_cmd_mux); mutex_init(&priv->wsm_cmd_mux);
mutex_init(&priv->conf_mutex); mutex_init(&priv->conf_mutex);
priv->workqueue = create_singlethread_workqueue("cw1200_wq"); priv->workqueue = create_singlethread_workqueue("cw1200_wq");
if (!priv->workqueue) {
ieee80211_free_hw(hw);
return NULL;
}
sema_init(&priv->scan.lock, 1); sema_init(&priv->scan.lock, 1);
INIT_WORK(&priv->scan.work, cw1200_scan_work); INIT_WORK(&priv->scan.work, cw1200_scan_work);
INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work); INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
......
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