Commit b23975e6 authored by Jaroslav Kysela's avatar Jaroslav Kysela Committed by Takashi Iwai
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ALSA: hda/hdmi: Limit the maximal count of PCM devices to 8 



The current hardware has up to 4 converters. Save little space.
The limit 8 is enough even for a more improved hardware.

Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20220923082236.61024-1-perex@perex.cz


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent ef6f5494

sound/pci/hda/patch_hdmi.c

+3 −3
Original line number Diff line number Diff line
@@ -151,7 +151,7 @@ struct hdmi_spec { 
	 */

	int dev_num;

	struct snd_array pins; /* struct hdmi_spec_per_pin */

	struct hdmi_pcm pcm_rec[16];

	struct hdmi_pcm pcm_rec[8];

	struct mutex pcm_lock;

	struct mutex bind_lock; /* for audio component binding */

	/* pcm_bitmap means which pcms have been assigned to pins*/
@@ -2299,8 +2299,8 @@ static int generic_hdmi_build_pcms(struct hda_codec *codec) 
		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];

		pstr->substreams = 1;

		pstr->ops = generic_ops;

		/* pcm number is less than 16 */

		if (spec->pcm_used >= 16)

		/* pcm number is less than pcm_rec array size */

		if (spec->pcm_used >= ARRAY_SIZE(spec->pcm_rec))

			break;

		/* other pstr fields are set in open */

	}