diff options
Diffstat (limited to 'sound/usb/card.c')
| -rw-r--r-- | sound/usb/card.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c index 282f0fc9fed..ccf95cfe186 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -25,9 +25,6 @@ * * NOTES: * - * - async unlink should be used for avoiding the sleep inside lock. - * 2.4.22 usb-uhci seems buggy for async unlinking and results in - * oops. in such a cse, pass async_unlink=0 option. * - the linked URBs would be preferred but not used so far because of * the instability of unlinking. * - type II is not supported properly. there is no device which supports @@ -83,7 +80,6 @@ static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;/* Enable this card * static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; static int nrpacks = 8; /* max. number of packets per urb */ -static bool async_unlink = 1; static int device_setup[SNDRV_CARDS]; /* device parameter for this card */ static bool ignore_ctl_error; @@ -99,8 +95,6 @@ module_param_array(pid, int, NULL, 0444); MODULE_PARM_DESC(pid, "Product ID for the USB audio device."); module_param(nrpacks, int, 0644); MODULE_PARM_DESC(nrpacks, "Max. number of packets per URB."); -module_param(async_unlink, bool, 0444); -MODULE_PARM_DESC(async_unlink, "Use async unlink mode."); module_param_array(device_setup, int, NULL, 0444); MODULE_PARM_DESC(device_setup, "Specific device setup (if needed)."); module_param(ignore_ctl_error, bool, 0444); @@ -345,7 +339,6 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx, chip->card = card; chip->setup = device_setup[idx]; chip->nrpacks = nrpacks; - chip->async_unlink = async_unlink; chip->probing = 1; chip->usb_id = USB_ID(le16_to_cpu(dev->descriptor.idVendor), @@ -559,9 +552,11 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, return; card = chip->card; - mutex_lock(®ister_mutex); down_write(&chip->shutdown_rwsem); chip->shutdown = 1; + up_write(&chip->shutdown_rwsem); + + mutex_lock(®ister_mutex); chip->num_interfaces--; if (chip->num_interfaces <= 0) { snd_card_disconnect(card); @@ -582,11 +577,9 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, snd_usb_mixer_disconnect(p); } usb_chip[chip->index] = NULL; - up_write(&chip->shutdown_rwsem); mutex_unlock(®ister_mutex); snd_card_free_when_closed(card); } else { - up_write(&chip->shutdown_rwsem); mutex_unlock(®ister_mutex); } } |