Staging: comedi: Added blank lines to fix coding style issue

Fixed a coding style issue by adding a blank line after declarations
Signed-off-by: Divyansh Kamboj <kambojdivyansh2000@gmail.com>
Link: https://lore.kernel.org/r/20200605032140.31287-1-kambojdivyansh2000@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/comedi_fops.c

@@ -2169,6 +2169,7 @@ static long comedi_unlocked_ioctl(struct file *file, unsigned int cmd,
 		break;
 	case COMEDI_CHANINFO: {
 		struct comedi_chaninfo it;
+
 		if (copy_from_user(&it, (void __user *)arg, sizeof(it)))
 			rc = -EFAULT;
 		else
@@ -2177,6 +2178,7 @@ static long comedi_unlocked_ioctl(struct file *file, unsigned int cmd,
 	}
 	case COMEDI_RANGEINFO: {
 		struct comedi_rangeinfo it;
+
 		if (copy_from_user(&it, (void __user *)arg, sizeof(it)))
 			rc = -EFAULT;
 		else
@@ -2249,6 +2251,7 @@ static long comedi_unlocked_ioctl(struct file *file, unsigned int cmd,
 	}
 	case COMEDI_INSN: {
 		struct comedi_insn insn;
+
 		if (copy_from_user(&insn, (void __user *)arg, sizeof(insn)))
 			rc = -EFAULT;
 		else