staging: line6: replace deprecated strict_strtol() in toneport.c

The LED value is an int, so replace strict_strtol() with kstrtoint().
It's safe to pass in the actual variable instead of a local temporary
because strto*() doesn't write to the result unless the function returns
success.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/line6/toneport.c

@@ -127,13 +127,11 @@ static ssize_t toneport_set_led_red(struct device *dev,
 				    const char *buf, size_t count)
 {
 	int retval;
-	long value;
 
-	retval = strict_strtol(buf, 10, &value);
+	retval = kstrtoint(buf, 10, &led_red);
 	if (retval)
 		return retval;
 
-	led_red = value;
 	toneport_update_led(dev);
 	return count;
 }
@@ -143,13 +141,11 @@ static ssize_t toneport_set_led_green(struct device *dev,
 				      const char *buf, size_t count)
 {
 	int retval;
-	long value;
 
-	retval = strict_strtol(buf, 10, &value);
+	retval = kstrtoint(buf, 10, &led_green);
 	if (retval)
 		return retval;
 
-	led_green = value;
 	toneport_update_led(dev);
 	return count;
 }