Staging: line6: fix checkpatch errors in toneport.c

Lots of warnings also fixed up.

Cc: Markus Grabner <grabner@icg.tugraz.at>
Cc: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/line6/toneport.c

@@ -75,34 +75,43 @@ static struct line6_pcm_properties toneport_pcm_properties = {
 
 /*
 	For the led on Guitarport.
-	Brightness goes from 0x00 to 0x26. Set a value above this to have led blink.
+	Brightness goes from 0x00 to 0x26. Set a value above this to have led
+	blink.
 	(void cmd_0x02(byte red, byte green)
 */
 static int led_red = 0x00;
 static int led_green = 0x26;
 
-static void toneport_update_led(struct device *dev)  {
-	struct usb_interface *interface;
-	struct usb_line6_toneport *tp;
-	struct usb_line6* line6;
+static void toneport_update_led(struct device *dev)
+{
+	struct usb_interface *interface = to_usb_interface(dev);
+	struct usb_line6_toneport *tp = usb_get_intfdata(interface);
+	struct usb_line6 *line6;
 
-	if ((interface = to_usb_interface(dev)) &&
-		(tp = usb_get_intfdata(interface)) &&
-		(line6 = &tp->line6))
-			toneport_send_cmd(line6->usbdev, (led_red<<8)|0x0002, led_green);	// for setting the LED on Guitarport
+	if (!tp)
+		return;
+
+	line6 = &tp->line6;
+	if (line6)
+		toneport_send_cmd(line6->usbdev, (led_red << 8) | 0x0002,
+				  led_green);
 }
+
 static ssize_t toneport_set_led_red(struct device *dev,
 				    struct device_attribute *attr,
-				    const char *buf, size_t count)  {
-	char* c;
+				    const char *buf, size_t count)
+{
+	char *c;
 	led_red = simple_strtol(buf, &c, 10);
 	toneport_update_led(dev);
 	return count;
 }
+
 static ssize_t toneport_set_led_green(struct device *dev,
 				      struct device_attribute *attr,
-				      const char *buf, size_t count)  {
-	char* c;
+				      const char *buf, size_t count)
+{
+	char *c;
 	led_green = simple_strtol(buf, &c, 10);
 	toneport_update_led(dev);
 	return count;
@@ -115,11 +124,12 @@ static DEVICE_ATTR(led_green, S_IWUGO | S_IRUGO, line6_nop_read, toneport_set_le
 static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2)
 {
 	int ret;
-	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev,0), 0x67,
-												USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-												cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ);
 
-	if(ret < 0)	{
+	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
+			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+			      cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ);
+
+	if (ret < 0) {
 		err("send failed (error %d)\n", ret);
 		return ret;
 	}
@@ -135,38 +145,44 @@ static void toneport_destruct(struct usb_interface *interface)
 	struct usb_line6_toneport *toneport = usb_get_intfdata(interface);
 	struct usb_line6 *line6;
 
-	if(toneport == NULL) return;
+	if (toneport == NULL)
+		return;
 	line6 = &toneport->line6;
-	if(line6 == NULL) return;
+	if (line6 == NULL)
+		return;
 	line6_cleanup_audio(line6);
 }
 
 /*
 	 Init Toneport device.
 */
-int toneport_init(struct usb_interface *interface, struct usb_line6_toneport *toneport)
+int toneport_init(struct usb_interface *interface,
+		  struct usb_line6_toneport *toneport)
 {
 	int err, ticks;
 	struct usb_line6 *line6 = &toneport->line6;
 	struct usb_device *usbdev;
 
-	if((interface == NULL) || (toneport == NULL))
+	if ((interface == NULL) || (toneport == NULL))
 		return -ENODEV;
 
 	/* initialize audio system: */
-	if((err = line6_init_audio(line6)) < 0) {
+	err = line6_init_audio(line6);
+	if (err < 0) {
 		toneport_destruct(interface);
 		return err;
 	}
 
 	/* initialize PCM subsystem: */
-	if((err = line6_init_pcm(line6, &toneport_pcm_properties)) < 0) {
+	err = line6_init_pcm(line6, &toneport_pcm_properties);
+	if (err < 0) {
 		toneport_destruct(interface);
 		return err;
 	}
 
 	/* register audio system: */
-	if((err = line6_register_audio(line6)) < 0) {
+	err = line6_register_audio(line6);
+	if (err < 0) {
 		toneport_destruct(interface);
 		return err;
 	}
@@ -182,11 +198,12 @@ int toneport_init(struct usb_interface *interface, struct usb_line6_toneport *to
 	/*
 	seems to work without the first two...
 	*/
-	//toneport_send_cmd(usbdev, 0x0201, 0x0002);  // ..
-	//toneport_send_cmd(usbdev, 0x0801, 0x0000);  // ..
-	toneport_send_cmd(usbdev, 0x0301, 0x0000);	// only one that works for me; on GP, TP might be different?
+	/* toneport_send_cmd(usbdev, 0x0201, 0x0002); */
+	/* toneport_send_cmd(usbdev, 0x0801, 0x0000); */
+	/* only one that works for me; on GP, TP might be different? */
+	toneport_send_cmd(usbdev, 0x0301, 0x0000);
 
-	if (usbdev->descriptor.idProduct!=LINE6_DEVID_GUITARPORT) {
+	if (usbdev->descriptor.idProduct != LINE6_DEVID_GUITARPORT) {
 		CHECK_RETURN(device_create_file(&interface->dev, &dev_attr_led_red));
 		CHECK_RETURN(device_create_file(&interface->dev, &dev_attr_led_green));
 		toneport_update_led(&usbdev->dev);
@@ -202,7 +219,8 @@ void toneport_disconnect(struct usb_interface *interface)
 {
 	struct usb_line6_toneport *toneport;
 
-	if(interface == NULL) return;
+	if (interface == NULL)
+		return;
 	toneport = usb_get_intfdata(interface);
 
 	if (toneport->line6.usbdev->descriptor.idProduct != LINE6_DEVID_GUITARPORT) {
@@ -210,10 +228,10 @@ void toneport_disconnect(struct usb_interface *interface)
 		device_remove_file(&interface->dev, &dev_attr_led_green);
 	}
 
-	if(toneport != NULL) {
+	if (toneport != NULL) {
 		struct snd_line6_pcm *line6pcm = toneport->line6.line6pcm;
 
-		if(line6pcm != NULL) {
+		if (line6pcm != NULL) {
 			unlink_wait_clear_audio_out_urbs(line6pcm);
 			unlink_wait_clear_audio_in_urbs(line6pcm);
 		}