ALSA locking bug...

From: Jeff Garzik (jgarzik@mandrakesoft.com)
Date: Sat Feb 16 2002 - 03:48:46 EST

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Andrew spotted this one... ALSA needs to be using a standard kernel
primitive... semaphore maybe? :)

include/sound/core.h:
> static inline void snd_power_lock(snd_card_t *card, int can_schedule)
> {
> while (test_and_set_bit(0, &card->power_lock)) {
> if (can_schedule) {
> set_current_state(TASK_INTERRUPTIBLE);
> schedule_timeout(1);
> }
> }
> }

Thanks much for all the ALSA work, as a [former] audio driver hacker, it
is a relief in many ways :)

Jeff

-- 
Jeff Garzik      | "Why is it that attractive girls like you
Building 1024    |  always seem to have a boyfriend?"
MandrakeSoft     | "Because I'm a nympho that owns a brewery?"
                 |             - BBC TV show "Coupling"
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