wl12xx: don't check wow param on suspend/resume

Since mac80211 calls suspend/resume only when wowlan triggers
exist, there is no need to check for triggers existance in the
callbacks as well.
Add a WARN_ON() to verify it.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/wl12xx/main.c

@@ -1551,10 +1551,12 @@ static int wl1271_op_suspend(struct ieee80211_hw *hw,
 			    struct cfg80211_wowlan *wow)
 {
 	struct wl1271 *wl = hw->priv;
-	wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
-	wl->wow_enabled = !!wow;
-	if (wl->wow_enabled) {
 	int ret;
+
+	wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
+	WARN_ON(!wow || !wow->any);
+
+	wl->wow_enabled = true;
 	ret = wl1271_configure_suspend(wl);
 	if (ret < 0) {
 		wl1271_warning("couldn't prepare device to suspend");
@@ -1580,25 +1582,24 @@ static int wl1271_op_suspend(struct ieee80211_hw *hw,
 	flush_work(&wl->tx_work);
 	flush_delayed_work(&wl->pspoll_work);
 	flush_delayed_work(&wl->elp_work);
-	}
+
 	return 0;
 }
 
 static int wl1271_op_resume(struct ieee80211_hw *hw)
 {
 	struct wl1271 *wl = hw->priv;
+	unsigned long flags;
+	bool run_irq_work = false;
+
 	wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
 		     wl->wow_enabled);
+	WARN_ON(!wl->wow_enabled);
 
 	/*
 	 * re-enable irq_work enqueuing, and call irq_work directly if
 	 * there is a pending work.
 	 */
-	if (wl->wow_enabled) {
-		struct wl1271 *wl = hw->priv;
-		unsigned long flags;
-		bool run_irq_work = false;
-
 	spin_lock_irqsave(&wl->wl_lock, flags);
 	clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
 	if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
@@ -1611,9 +1612,7 @@ static int wl1271_op_resume(struct ieee80211_hw *hw)
 		wl1271_irq(0, wl);
 		wl1271_enable_interrupts(wl);
 	}
-
 	wl1271_configure_resume(wl);
-	}
 
 	return 0;
 }