Commit 92c01d8f authored by Takashi Iwai's avatar Takashi Iwai Committed by Greg Kroah-Hartman

ALSA: pcm: Fix interval evaluation with openmin/max

commit 5363857b916c1f48027e9b96ee8be8376bf20811 upstream.

As addressed in alsa-lib (commit b420056604f0), we need to fix the
case where the evaluation of PCM interval "(x x+1]" leading to
-EINVAL.  After applying rules, such an interval may be translated as
"(x x+1)".

Fixes: ff2d6acdf6f1 ("ALSA: pcm: Fix snd_interval_refine first/last with open min/max")
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1b5c6d03
......@@ -247,11 +247,13 @@ static inline int snd_interval_empty(const struct snd_interval *i)
static inline int snd_interval_single(const struct snd_interval *i)
{
return (i->min == i->max ||
(i->min + 1 == i->max && i->openmax));
(i->min + 1 == i->max && (i->openmin || i->openmax)));
}
static inline int snd_interval_value(const struct snd_interval *i)
{
if (i->openmin && !i->openmax)
return i->max;
return i->min;
}
......
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