wl1251: fix event handling mechanism

In case both A and B events occured simultaneously, current code
would only process A and clear both interrupts. Make it process both
events instead.

Based on wl1271 patches by Juuso Oikarinen:
1fd2794f
13f2dc52Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/wl12xx/wl1251_main.c

@@ -293,13 +293,13 @@ static void wl1251_irq_work(struct work_struct *work)
 			wl1251_tx_complete(wl);
 		}
 
-		if (intr & (WL1251_ACX_INTR_EVENT_A |
-			    WL1251_ACX_INTR_EVENT_B)) {
-			wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT (0x%x)",
-				     intr);
-			if (intr & WL1251_ACX_INTR_EVENT_A)
+		if (intr & WL1251_ACX_INTR_EVENT_A) {
+			wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_A");
 			wl1251_event_handle(wl, 0);
-			else
+		}
+
+		if (intr & WL1251_ACX_INTR_EVENT_B) {
+			wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_B");
 			wl1251_event_handle(wl, 1);
 		}