[PATCH] ASoC: codecs: Fix error handling in power domain init and exit handlers

Srinivasa Rao Mandadapu quic_srivasam at quicinc.com
Tue Mar 22 17:18:57 CET 2022


Update error handling in power domain init and exit handlers, as existing handling
may cause issues in device remove function.
Use appropriate pm core api for power domain get and sync to avoid redundant code.

Fixes: 9e3d83c52844 ("ASoC: codecs: Add power domains support in digital macro codecs")

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam at quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu at quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu at quicinc.com>
Reported-by: kernel test robot <lkp at intel.com>
Reported-by: Dan Carpenter <dan.carpenter at oracle.com>
---
 sound/soc/codecs/lpass-macro-common.c | 35 +++++++++++++++++++----------------
 1 file changed, 19 insertions(+), 16 deletions(-)

diff --git a/sound/soc/codecs/lpass-macro-common.c b/sound/soc/codecs/lpass-macro-common.c
index 6cede75..3c661fd 100644
--- a/sound/soc/codecs/lpass-macro-common.c
+++ b/sound/soc/codecs/lpass-macro-common.c
@@ -24,42 +24,45 @@ struct lpass_macro *lpass_macro_pds_init(struct device *dev)
 		return ERR_PTR(-ENOMEM);
 
 	l_pds->macro_pd = dev_pm_domain_attach_by_name(dev, "macro");
-	if (IS_ERR_OR_NULL(l_pds->macro_pd))
-		return NULL;
-
-	ret = pm_runtime_get_sync(l_pds->macro_pd);
-	if (ret < 0) {
-		pm_runtime_put_noidle(l_pds->macro_pd);
+	if (IS_ERR_OR_NULL(l_pds->macro_pd)) {
+		ret = PTR_ERR(l_pds->macro_pd);
 		goto macro_err;
 	}
 
+	ret = pm_runtime_resume_and_get(l_pds->macro_pd);
+	if (ret < 0)
+		goto macro_sync_err;
+
 	l_pds->dcodec_pd = dev_pm_domain_attach_by_name(dev, "dcodec");
-	if (IS_ERR_OR_NULL(l_pds->dcodec_pd))
+	if (IS_ERR_OR_NULL(l_pds->dcodec_pd)) {
+		ret = PTR_ERR(l_pds->dcodec_pd);
 		goto dcodec_err;
+	}
 
-	ret = pm_runtime_get_sync(l_pds->dcodec_pd);
-	if (ret < 0) {
-		pm_runtime_put_noidle(l_pds->dcodec_pd);
+	ret = pm_runtime_resume_and_get(l_pds->dcodec_pd);
+	if (ret < 0)
 		goto dcodec_sync_err;
-	}
 	return l_pds;
 
 dcodec_sync_err:
 	dev_pm_domain_detach(l_pds->dcodec_pd, false);
 dcodec_err:
 	pm_runtime_put(l_pds->macro_pd);
-macro_err:
+macro_sync_err:
 	dev_pm_domain_detach(l_pds->macro_pd, false);
+macro_err:
 	return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_GPL(lpass_macro_pds_init);
 
 void lpass_macro_pds_exit(struct lpass_macro *pds)
 {
-	pm_runtime_put(pds->macro_pd);
-	dev_pm_domain_detach(pds->macro_pd, false);
-	pm_runtime_put(pds->dcodec_pd);
-	dev_pm_domain_detach(pds->dcodec_pd, false);
+	if (pds) {
+		pm_runtime_put(pds->macro_pd);
+		dev_pm_domain_detach(pds->macro_pd, false);
+		pm_runtime_put(pds->dcodec_pd);
+		dev_pm_domain_detach(pds->dcodec_pd, false);
+	}
 }
 EXPORT_SYMBOL_GPL(lpass_macro_pds_exit);
 
-- 
2.7.4



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