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>
diff --git a/sound/usb/caiaq/caiaq-device.c b/sound/usb/caiaq/caiaq-device.c
index b143ef7..a62500e 100644
--- a/sound/usb/caiaq/caiaq-device.c
+++ b/sound/usb/caiaq/caiaq-device.c
@@ -446,7 +446,7 @@
 	if (!card)
 		return -ENOMEM;
 			
-	dev_set_drvdata(&intf->dev, card);
+	usb_set_intfdata(intf, card);
 	ret = init_card(caiaqdev(card));
 	if (ret < 0) {
 		log("unable to init card! (ret=%d)\n", ret);
@@ -460,7 +460,7 @@
 static void snd_disconnect(struct usb_interface *intf)
 {
 	struct snd_usb_caiaqdev *dev;
-	struct snd_card *card = dev_get_drvdata(&intf->dev);
+	struct snd_card *card = usb_get_intfdata(intf);
 
 	debug("%s(%p)\n", __func__, intf);