ASoC: SOF: Various runtime pm fixes, improvements

Merge series from Peter Ujfalusi <[e-mail]>:

Three patch to correct error path PM runtime handling in few places.

Regards,
Peter
---
Pierre-Louis Bossart (3):
ASoC: SOF: debug: conditionally bump runtime_pm counter on exceptions
ASoC: SOF: pcm: fix pm_runtime imbalance in error handling
ASoC: SOF: sof-client-probes: fix pm_runtime imbalance in error
handling

sound/soc/sof/debug.c | 4 ++--
sound/soc/sof/pcm.c | 11 ++++++-----
sound/soc/sof/sof-client-probes.c | 14 ++++++++------
3 files changed, 16 insertions(+), 13 deletions(-)

--
2.40.1

sound/soc/sof/debug.c

···
 		/* should we prevent DSP entering D3 ? */
 		if (!sdev->ipc_dump_printed)
 			dev_info(sdev->dev,
-				 "preventing DSP entering D3 state to preserve context\n");
-		pm_runtime_get_noresume(sdev->dev);
+				 "Attempting to prevent DSP from entering D3 state to preserve context\n");
+		pm_runtime_get_if_in_use(sdev->dev);
 	}
 
 	/* dump vital information to the logs */

sound/soc/sof/pcm.c

···
 				       "%s/%s",
 				       plat_data->tplg_filename_prefix,
 				       plat_data->tplg_filename);
-	if (!tplg_filename)
-		return -ENOMEM;
-
-	ret = snd_sof_load_topology(component, tplg_filename);
-	if (ret < 0) {
-		dev_err(component->dev, "error: failed to load DSP topology %d\n",
-			ret);
-		return ret;
+	if (!tplg_filename) {
+		ret = -ENOMEM;
+		goto pm_error;
 	}
 
+	ret = snd_sof_load_topology(component, tplg_filename);
+	if (ret < 0)
+		dev_err(component->dev, "error: failed to load DSP topology %d\n",
+			ret);
+
+pm_error:
 	pm_runtime_mark_last_busy(component->dev);
 	pm_runtime_put_autosuspend(component->dev);
 

sound/soc/sof/sof-client-probes.c

···
 
 	ret = ipc->points_info(cdev, &desc, &num_desc);
 	if (ret < 0)
-		goto exit;
-
-	pm_runtime_mark_last_busy(dev);
-	err = pm_runtime_put_autosuspend(dev);
-	if (err < 0)
-		dev_err_ratelimited(dev, "debugfs read failed to idle %d\n", err);
+		goto pm_error;
 
 	for (i = 0; i < num_desc; i++) {
 		offset = strlen(buf);
···
 	ret = simple_read_from_buffer(to, count, ppos, buf, strlen(buf));
 
 	kfree(desc);
+
+pm_error:
+	pm_runtime_mark_last_busy(dev);
+	err = pm_runtime_put_autosuspend(dev);
+	if (err < 0)
+		dev_err_ratelimited(dev, "debugfs read failed to idle %d\n", err);
+
 exit:
 	kfree(buf);
 	return ret;