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ALSA: pcm: snd_interval_step: fix changes of open intervals

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Changing an interval boundary to a multiple of the step size makes that
boundary exact.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch 2014-09-07 21:43:41 +02:00 committed by Takashi Iwai
parent 0f519b6221
commit df1e471966
1 changed files with 2 additions and 0 deletions
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2
sound/core/pcm_lib.c
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@ -1120,11 +1120,13 @@ static int snd_interval_step(struct snd_interval *i, unsigned int step)
n = i->min % step; n = i->min % step;
if (n != 0 || i->openmin) { if (n != 0 || i->openmin) {
i->min += step - n; i->min += step - n;
i->openmin = 0;
changed = 1; changed = 1;
} }
n = i->max % step; n = i->max % step;
if (n != 0 || i->openmax) { if (n != 0 || i->openmax) {
i->max -= n; i->max -= n;
i->openmax = 0;
changed = 1; changed = 1;
} }
if (snd_interval_checkempty(i)) { if (snd_interval_checkempty(i)) {