From: Jaroslav Kysela perex@perex.cz

[ Upstream commit 5f80d6bd2b01de4cafac3302f58456bf860322fc ]

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@linux.intel.com Signed-off-by: Jaroslav Kysela perex@perex.cz Link: https://lore.kernel.org/r/20220913070216.3233974-1-perex@perex.cz Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- 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 71e11481ba41..64f5192bcff8 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1257,6 +1257,7 @@ 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 */