staging: comedi: pcmuio: remove unnecessary mask of triggered channels

The 'triggered' value is read directly from the three trigger id
registers and does not have any extra data that needs masked off.
Remove the 'mytrig' local variable and just use 'triggered' directly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/pcmuio.c

@@ -297,24 +297,20 @@ static void pcmuio_handle_intr_subdev(struct comedi_device *dev,
 	unsigned oldevents = s->async->events;
 	unsigned int val = 0;
 	unsigned long flags;
-	unsigned mytrig;
 	unsigned int i;
 
 	spin_lock_irqsave(&chip->spinlock, flags);
 
 	if (!chip->active)
 		goto done;
 
-	mytrig = triggered;
-	mytrig &= ((0x1 << s->n_chan) - 1);
-
-	if (!(mytrig & chip->enabled_mask))
+	if (!(triggered & chip->enabled_mask))
 		goto done;
 
 	for (i = 0; i < len; i++) {
 		unsigned int chan = CR_CHAN(s->async->cmd.chanlist[i]);
-		if (mytrig & (1U << chan))
-			val |= (1U << i);
+		if (triggered & (1 << chan))
+			val |= (1 << i);
 	}
 
 	/* Write the scan to the buffer. */