ALSA: Use usb_set/get_intfdata

Use the USB functions usb_get_intfdata and usb_set_intfdata instead of
dev_get_drvdata and dev_set_drvdata, respectively.

The semantic patch that makes this change for the usb_get_intfdata case is
as follows: (http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@header@
@@

#include <linux/usb.h>

@same depends on header@
position p;
@@

usb_get_intfdata@p(...) { ... }

@depends on header@
position _p!=same.p;
identifier _f;
struct usb_interface*intf;
@@

_f@_p(...) { <+...
- dev_get_drvdata(&intf->dev)
+ usb_get_intfdata(intf)
...+> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/usb/usbaudio.c

@@ -3709,7 +3709,7 @@ static int usb_audio_probe(struct usb_interface *intf,
 	void *chip;
 	chip = snd_usb_audio_probe(interface_to_usbdev(intf), intf, id);
 	if (chip) {
-		dev_set_drvdata(&intf->dev, chip);
+		usb_set_intfdata(intf, chip);
 		return 0;
 	} else
 		return -EIO;
@@ -3718,13 +3718,13 @@ static int usb_audio_probe(struct usb_interface *intf,
 static void usb_audio_disconnect(struct usb_interface *intf)
 {
 	snd_usb_audio_disconnect(interface_to_usbdev(intf),
-				 dev_get_drvdata(&intf->dev));
+				 usb_get_intfdata(intf));
 }
 
 #ifdef CONFIG_PM
 static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
 {
-	struct snd_usb_audio *chip = dev_get_drvdata(&intf->dev);
+	struct snd_usb_audio *chip = usb_get_intfdata(intf);
 	struct list_head *p;
 	struct snd_usb_stream *as;
 
@@ -3744,7 +3744,7 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
 
 static int usb_audio_resume(struct usb_interface *intf)
 {
-	struct snd_usb_audio *chip = dev_get_drvdata(&intf->dev);
+	struct snd_usb_audio *chip = usb_get_intfdata(intf);
 
 	if (chip == (void *)-1L)
 		return 0;