staging: pi433: pi433_if.c codestyle fix in IRQ_handler

This patch fixes the following checkpatch.pl errors:

ERROR: that open brace { should be on the previous line
torvalds#344: FILE: pi433_if.c:344:
+       if(retval) /* wait was interrupted */
+       {

ERROR: space required before the open parenthesis '('
torvalds#344: FILE: pi433_if.c:344:
+       if(retval) /* wait was interrupted */

Signed-off-by: Oliver Graute <[email protected]>

drivers/staging/pi433/pi433_if.c

@@ -376,8 +376,7 @@ pi433_receive(void *data)
 	/* wait for any tx to finish */
 	dev_dbg(dev->dev,"rx: going to wait for any tx to finish");
 	retval = wait_event_interruptible(dev->rx_wait_queue, !dev->tx_active);
-	if(retval) /* wait was interrupted */
-	{
+	if (retval) {
 		dev->interrupt_rx_allowed = true;
 		wake_up_interruptible(&dev->tx_wait_queue);
 		return retval;