ASoC: qcom: q6apm-dai: reset queue ptr on trigger stop

commit cab45ab upstream.

Reset queue pointer on SNDRV_PCM_TRIGGER_STOP event to be inline
with resetting appl_ptr. Without this we will end up with a queue_ptr
out of sync and driver could try to send data that is not ready yet.

Fix this by resetting the queue_ptr.

Fixes: 3d4a441 ("ASoC: q6apm-dai: schedule all available frames to avoid dsp under-runs")
Cc: Stable@vger.kernel.org
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20260402081118.348071-6-srinivas.kandagatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Srinivas Kandagatla

sound/soc/qcom/qdsp6/q6apm-dai.c

@@ -321,6 +321,7 @@ static int q6apm_dai_trigger(struct snd_soc_component *component,
 	case SNDRV_PCM_TRIGGER_STOP:
 		/* TODO support be handled via SoftPause Module */
 		prtd->state = Q6APM_STREAM_STOPPED;
+		prtd->queue_ptr = 0;
 		break;
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:

sound/soc/qcom/qdsp6/q6apm.c

@@ -225,6 +225,8 @@ int q6apm_map_memory_regions(struct q6apm_graph *graph, unsigned int dir, phys_a
 
 	mutex_lock(&graph->lock);
 
+	data->dsp_buf = 0;
+
 	if (data->buf) {
 		mutex_unlock(&graph->lock);
 		return 0;