staging: pi433: break long lines in pi433_if.c

Breaks long lines in pi433_if.c, fixing checkpatch.pl warnings:
"WARNING: line over 80 characters"

Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/pi433/pi433_if.c

@@ -591,13 +591,17 @@ pi433_tx_thread(void *data)
 		 */
 		retval = kfifo_out(&device->tx_fifo, &tx_cfg, sizeof(tx_cfg));
 		if (retval != sizeof(tx_cfg)) {
-			dev_dbg(device->dev, "reading tx_cfg from fifo failed: got %d byte(s), expected %d", retval, (unsigned int)sizeof(tx_cfg));
+			dev_dbg(device->dev,
+				"reading tx_cfg from fifo failed: got %d byte(s), expected %d",
+				retval, (unsigned int)sizeof(tx_cfg));
 			continue;
 		}
 
 		retval = kfifo_out(&device->tx_fifo, &size, sizeof(size_t));
 		if (retval != sizeof(size_t)) {
-			dev_dbg(device->dev, "reading msg size from fifo failed: got %d, expected %d", retval, (unsigned int)sizeof(size_t));
+			dev_dbg(device->dev,
+				"reading msg size from fifo failed: got %d, expected %d",
+				retval, (unsigned int)sizeof(size_t));
 			continue;
 		}
 
@@ -619,7 +623,11 @@ pi433_tx_thread(void *data)
 
 		/* add length byte, if requested */
 		if (tx_cfg.enable_length_byte  == OPTION_ON)
-			device->buffer[position++] = size - 1; /* according to spec length byte itself must be excluded from the length calculation */
+			/*
+			 * according to spec, length byte itself must be
+			 * excluded from the length calculation
+			 */
+			device->buffer[position++] = size - 1;
 
 		/* add adr byte, if requested */
 		if (tx_cfg.enable_address_byte == OPTION_ON)
@@ -1047,7 +1055,7 @@ static int setup_gpio(struct pi433_device *device)
 		/* configure irq */
 		device->irq_num[i] = gpiod_to_irq(device->gpiod[i]);
 		if (device->irq_num[i] < 0) {
-			device->gpiod[i] = ERR_PTR(-EINVAL);//(struct gpio_desc *)device->irq_num[i];
+			device->gpiod[i] = ERR_PTR(-EINVAL);
 			return device->irq_num[i];
 		}
 		retval = request_irq(device->irq_num[i],