Staging: wlan-ng: silence a sparse warning

This doesn't change the behavior.  It just silences a sparse warning.

drivers/staging/wlan-ng/hfa384x_usb.c:2810:62: warning: dubious: !x | !y

The point of the bitwise OR is so that a logical OR could short circuit
the second call to test_and_set_bit().
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/wlan-ng/hfa384x_usb.c

@@ -2805,10 +2805,12 @@ void hfa384x_tx_timeout(wlandevice_t *wlandev)
 
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
 
-	if (!hw->wlandev->hwremoved &&
-	    /* Note the bitwise OR, not the logical OR. */
-	    (!test_and_set_bit(WORK_TX_HALT, &hw->usb_flags) |
-	     !test_and_set_bit(WORK_RX_HALT, &hw->usb_flags))) {
+	if (!hw->wlandev->hwremoved) {
+		int sched;
+
+		sched = !test_and_set_bit(WORK_TX_HALT, &hw->usb_flags);
+		sched |= !test_and_set_bit(WORK_RX_HALT, &hw->usb_flags);
+		if (sched)
 			schedule_work(&hw->usb_work);
 	}