Commit 596580d0 authored by Daniel Mack's avatar Daniel Mack Committed by Takashi Iwai
Browse files

ALSA: snd-usb: add snd_usb_audio-wide mutex



This is needed for new card-wide list operations.

Signed-off-by: default avatarDaniel Mack <zonque@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent dd775ae2
......@@ -276,6 +276,7 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
static int snd_usb_audio_free(struct snd_usb_audio *chip)
{
mutex_destroy(&chip->mutex);
kfree(chip);
return 0;
}
......@@ -336,6 +337,7 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx,
return -ENOMEM;
}
mutex_init(&chip->mutex);
mutex_init(&chip->shutdown_mutex);
chip->index = idx;
chip->dev = dev;
......
......@@ -36,6 +36,7 @@ struct snd_usb_audio {
struct snd_card *card;
struct usb_interface *pm_intf;
u32 usb_id;
struct mutex mutex;
struct mutex shutdown_mutex;
unsigned int shutdown:1;
unsigned int probing:1;
......
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