Commit 6ed5eff0 authored by Clemens Ladisch's avatar Clemens Ladisch Committed by Jaroslav Kysela
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[ALSA] system timer: accumulate correction for multiple lost ticks 



When multiple timer interrupts arrive too late, correct for all delays
instead of ignoring the earlier ones.

Signed-off-by: default avatarClemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarJaroslav Kysela <perex@suse.cz>
parent 17f48ec3

sound/core/timer.c

+1 −1
Original line number Diff line number Diff line
@@ -971,7 +971,7 @@ static void snd_timer_s_function(unsigned long data) 
	struct snd_timer_system_private *priv = timer->private_data;

	unsigned long jiff = jiffies;

	if (time_after(jiff, priv->last_expires))

		priv->correction = (long)jiff - (long)priv->last_expires;

		priv->correction += (long)jiff - (long)priv->last_expires;

	snd_timer_interrupt(timer, (long)jiff - (long)priv->last_jiffies);

}