staging: comedi: drivers: pcl812.c: add curly braces for checkpatch

Kernel style is that if one side of the if else statement gets has curly
braces then both side should have them.
Signed-off-by: Kumar Amit Mehta <gmate.amit@gmail.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/pcl812.c

@@ -811,8 +811,9 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 				devpriv->ai_dma = 0;
 				break;
 			}
-	} else
+	} else {
 		devpriv->ai_dma = 0;
+	}
 
 	devpriv->ai_act_scan = 0;
 	devpriv->ai_poll_ptr = 0;