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authorTakashi Iwai <tiwai@suse.de>2009-02-05 09:28:08 +0100
committerTakashi Iwai <tiwai@suse.de>2009-02-05 09:28:08 +0100
commit28b7e343ee63454d563a71d2d5f769fc297fd5ad (patch)
tree07911d0d442898ed5f6664fa1524e006b6c67114 /sound/usb/usbmixer.c
parente0d80648c0037b8b815317a52b782d4ea0c287f0 (diff)
ALSA: Remove superfluous hwdep ops
Remove NOP hwdep ops in sound drivers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/usbmixer.c')
-rw-r--r--sound/usb/usbmixer.c22
1 files changed, 1 insertions, 21 deletions
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index 00397c8a765..2bde79216fa 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -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)