[ALSA] usb-audio - remove superfluous parameter

USB generic driver,USB USX2Y
This patch removes the superfluous driver parameter from the
disconnect functions.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

sound/usb/usbaudio.c

@@ -2588,7 +2588,7 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
  * disconnect streams
  * called from snd_usb_audio_disconnect()
  */
-static void snd_usb_stream_disconnect(struct list_head *head, struct usb_driver *driver)
+static void snd_usb_stream_disconnect(struct list_head *head)
 {
 	int idx;
 	snd_usb_stream_t *as;
@@ -3282,11 +3282,11 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr)
 		snd_card_disconnect(card);
 		/* release the pcm resources */
 		list_for_each(p, &chip->pcm_list) {
-			snd_usb_stream_disconnect(p, &usb_audio_driver);
+			snd_usb_stream_disconnect(p);
 		}
 		/* release the midi resources */
 		list_for_each(p, &chip->midi_list) {
-			snd_usbmidi_disconnect(p, &usb_audio_driver);
+			snd_usbmidi_disconnect(p);
 		}
 		usb_chip[chip->index] = NULL;
 		up(&register_mutex);

sound/usb/usbaudio.h

@@ -223,7 +223,7 @@ int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif);
 int snd_usb_create_midi_interface(snd_usb_audio_t *chip, struct usb_interface *iface, const snd_usb_audio_quirk_t *quirk);
 void snd_usbmidi_input_stop(struct list_head* p);
 void snd_usbmidi_input_start(struct list_head* p);
-void snd_usbmidi_disconnect(struct list_head *p, struct usb_driver *driver);
+void snd_usbmidi_disconnect(struct list_head *p);
 
 /*
  * retrieve usb_interface descriptor from the host interface

sound/usb/usbmidi.c

@@ -912,7 +912,7 @@ static void snd_usbmidi_free(snd_usb_midi_t* umidi)
 /*
  * Unlinks all URBs (must be done before the usb_device is deleted).
  */
-void snd_usbmidi_disconnect(struct list_head* p, struct usb_driver *driver)
+void snd_usbmidi_disconnect(struct list_head* p)
 {
 	snd_usb_midi_t* umidi;
 	int i;

sound/usb/usx2y/usbusx2y.c

@@ -442,7 +442,7 @@ static void usX2Y_usb_disconnect(struct usb_device* device, void* ptr)
 		snd_card_disconnect((snd_card_t*)ptr);
 		/* release the midi resources */
 		list_for_each(p, &usX2Y->chip.midi_list) {
-			snd_usbmidi_disconnect(p, &snd_usX2Y_usb_driver);
+			snd_usbmidi_disconnect(p);
 		}
 		if (usX2Y->us428ctls_sharedmem) 
 			wake_up(&usX2Y->us428ctls_wait_queue_head);