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[ALSA] usb-audio - Fix race in reconnection 

Fix the race at reconnection of the device.
The disconnected usb_chip[] must be cleared before the next probe
call properly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2008-04-17 12:53:26 +02:00
parent f18638dcf0
commit 9eb70e68f3
1 changed files with 1 additions and 1 deletions
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2
sound/usb/usbaudio.c
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@ -3424,7 +3424,6 @@ static void snd_usb_audio_create_proc(struct snd_usb_audio *chip)
static int snd_usb_audio_free(struct snd_usb_audio *chip)
{
usb_chip[chip->index] = NULL;
kfree(chip);
return 0;
}
@ -3689,6 +3688,7 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr)
list_for_each(p, &chip->mixer_list) {
snd_usb_mixer_disconnect(p);
}
usb_chip[chip->index] = NULL;
mutex_unlock(&register_mutex);
snd_card_free_when_closed(card);
} else {