From: Takashi Iwai Date: Fri, 29 Aug 2008 14:17:25 +0000 (+0200) Subject: ALSA: ice1724 - limit channels for multi-channel playback X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a6b936b956a2b70b6f49741403b5f8b90a8acc7f;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git ALSA: ice1724 - limit channels for multi-channel playback Limit the available channels for multi-channel playback device to the real number of channels. Until now, always up to 8 channels are created, which are simply useless without the real outputs. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c index 60119d220a66..7bb99df44fd1 100644 --- a/sound/pci/ice1712/ice1724.c +++ b/sound/pci/ice1712/ice1724.c @@ -942,7 +942,7 @@ static int snd_vt1724_playback_pro_open(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_ice1712 *ice = snd_pcm_substream_chip(substream); - int chs; + int chs, num_indeps; runtime->private_data = (void *)&vt1724_playback_pro_reg; ice->playback_pro_substream = substream; @@ -952,7 +952,8 @@ static int snd_vt1724_playback_pro_open(struct snd_pcm_substream *substream) set_rate_constraints(ice, substream); mutex_lock(&ice->open_mutex); /* calculate the currently available channels */ - for (chs = 0; chs < 3; chs++) { + num_indeps = ice->num_total_dacs / 2 - 1; + for (chs = 0; chs < num_indeps; chs++) { if (ice->pcm_reserved[chs]) break; }