ALSA: hda: Fix regression by strip mask fix

commit 6fd739c04ffd877641b01371f9fde67901e7f9cb upstream.

The commit e38e486d66e2 ("ALSA: hda: Modify stream stripe mask only
when needed") tried to address the regression by the unconditional
application of the stripe mask, but this caused yet another
regression for the previously working devices.  Namely, the patch
clears the azx_dev->stripe flag at snd_hdac_stream_clear(), but this
may be called multiple times before restarting the stream, so this
ended up with clearance of the flag for the whole time.

This patch fixes the regression by moving the azx_dev->stripe flag
clearance at the counter-part, the close callback of HDMI codec
driver instead.

Fixes: e38e486d66e2 ("ALSA: hda: Modify stream stripe mask only when needed")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205855
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204477
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191214175217.31852-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: Stefani Seibold <stefani@seibold.net>
Cc: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
index f9707fb05efe6812e9ec2ad69fb45e96b9bd9db5..682ed39f79b015a3982b6e149ff3bf1c0d3632b6 100644 (file)
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -120,10 +120,8 @@ void snd_hdac_stream_clear(struct hdac_stream *azx_dev)
        snd_hdac_stream_updateb(azx_dev, SD_CTL,
                                SD_CTL_DMA_START | SD_INT_MASK, 0);
        snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
-       if (azx_dev->stripe) {
+       if (azx_dev->stripe)
                snd_hdac_stream_updateb(azx_dev, SD_CTL_3B, SD_CTL_STRIPE_MASK, 0);
-               azx_dev->stripe = 0;
-       }
        azx_dev->running = false;
 }
 EXPORT_SYMBOL_GPL(snd_hdac_stream_clear);

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 4dafc864d7652e7a484f2da50f0780fb87768499..488c17c9f375c8be2429cb470b4f773c64605641 100644 (file)
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1983,6 +1983,8 @@ static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
                per_cvt->assigned = 0;
                hinfo->nid = 0;
 
+               azx_stream(get_azx_dev(substream))->stripe = 0;
+
                mutex_lock(&spec->pcm_lock);
                snd_hda_spdif_ctls_unassign(codec, pcm_idx);
                clear_bit(pcm_idx, &spec->pcm_in_use);