[PATCH] ALSA: hda/hdmi: Fix the converter reuse for the silent stream

Jaroslav Kysela perex at perex.cz
Tue Sep 13 09:02:16 CEST 2022


When the user space pcm stream uses the silent stream converter,
it is no longer allocated for the silent stream. Clear the appropriate
flag in the hdmi_pcm_open() function. The silent stream setup may
be applied in hdmi_pcm_close() (and the error path - open fcn) again.

If the flag is not cleared, the reuse conditions for the silent
stream converter in hdmi_choose_cvt() may improperly share
this converter.

Cc: Kai Vehmanen <kai.vehmanen at linux.intel.com>
Signed-off-by: Jaroslav Kysela <perex at perex.cz>
---
 sound/pci/hda/patch_hdmi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 6c209cd26c0c..22766810635b 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1267,6 +1267,7 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
 	set_bit(pcm_idx, &spec->pcm_in_use);
 	per_pin = get_pin(spec, pin_idx);
 	per_pin->cvt_nid = per_cvt->cvt_nid;
+	per_pin->silent_stream = false;
 	hinfo->nid = per_cvt->cvt_nid;
 
 	/* flip stripe flag for the assigned stream if supported */
-- 
2.35.3


More information about the Alsa-devel mailing list