staging: comedi: Removed not necessary braces for single block

This patch is used to remove not necessary braces for single if block.
Signed-off-by: Jitendra Khasdev <jkhasdev@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/comedi_fops.c

@@ -1605,9 +1605,9 @@ static int do_insn_ioctl(struct comedi_device *dev,
 	unsigned int n_data = MIN_SAMPLES;
 	int ret = 0;
 
-	if (copy_from_user(&insn, arg, sizeof(insn))) {
+	if (copy_from_user(&insn, arg, sizeof(insn)))
 		return -EFAULT;
-	}
+
 
 	n_data = max(n_data, insn.n);