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[ALSA] Unregister device files at disconnection

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Orignally proposed by Sam Revitch <sam.revitch@gmail.com>.
Unregister device files at disconnection to avoid the futher accesses.
Also, the dev_unregister callback is removed and replaced with the
combination of disconnect + free.
A new function snd_card_free_when_closed() is introduced, which is
used in USB disconnect callback.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Takashi Iwai
2006-06-23 14:38:23 +02:00
committed by Jaroslav Kysela
parent 746d4a02e6
commit c461482c80
15 changed files with 149 additions and 173 deletions
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2
sound/core/rtctimer.c
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@@ -156,7 +156,7 @@ static int __init rtctimer_init(void)
static void __exit rtctimer_exit(void)
{
if (rtctimer) {
snd_timer_global_unregister(rtctimer);
snd_timer_global_free(rtctimer);
rtctimer = NULL;
}
}