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ALSA: Remove superfluous hwdep ops

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Remove NOP hwdep ops in sound drivers.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2009-02-05 09:28:08 +01:00
parent e0d80648c0
commit 28b7e343ee
8 changed files with 1 additions and 108 deletions
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22
sound/usb/usbmixer.c
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@@ -78,7 +78,6 @@ struct usb_mixer_interface {
/* Sound Blaster remote control stuff */
const struct rc_config *rc_cfg;
unsigned long rc_hwdep_open;
u32 rc_code;
wait_queue_head_t rc_waitq;
struct urb *rc_urb;
@@ -1797,24 +1796,6 @@ static void snd_usb_soundblaster_remote_complete(struct urb *urb)
wake_up(&mixer->rc_waitq);
}
static int snd_usb_sbrc_hwdep_open(struct snd_hwdep *hw, struct file *file)
{
struct usb_mixer_interface *mixer = hw->private_data;
if (test_and_set_bit(0, &mixer->rc_hwdep_open))
return -EBUSY;
return 0;
}
static int snd_usb_sbrc_hwdep_release(struct snd_hwdep *hw, struct file *file)
{
struct usb_mixer_interface *mixer = hw->private_data;
clear_bit(0, &mixer->rc_hwdep_open);
smp_mb__after_clear_bit();
return 0;
}
static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf,
long count, loff_t *offset)
{
@@ -1867,9 +1848,8 @@ static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC;
hwdep->private_data = mixer;
hwdep->ops.read = snd_usb_sbrc_hwdep_read;
hwdep->ops.open = snd_usb_sbrc_hwdep_open;
hwdep->ops.release = snd_usb_sbrc_hwdep_release;
hwdep->ops.poll = snd_usb_sbrc_hwdep_poll;
hwdep->exclusive = 1;
mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!mixer->rc_urb)