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net: cw1200: fix a NULL pointer dereference
In case create_singlethread_workqueue fails, the fix free the hardware and returns NULL to avoid NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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@ -345,6 +345,11 @@ static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
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mutex_init(&priv->wsm_cmd_mux);
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mutex_init(&priv->conf_mutex);
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priv->workqueue = create_singlethread_workqueue("cw1200_wq");
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if (!priv->workqueue) {
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ieee80211_free_hw(hw);
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return NULL;
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}
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sema_init(&priv->scan.lock, 1);
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INIT_WORK(&priv->scan.work, cw1200_scan_work);
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INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
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