linux-kernel - [PATCH 5.18 497/879] ASoC: codecs: lpass: Fix passing zero to PTR

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Date:   Tue,  7 Jun 2022 19:00:15 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, YueHaibing <yuehaibing@...wei.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 497/879] ASoC: codecs: lpass: Fix passing zero to PTR_ERR

From: YueHaibing <yuehaibing@...wei.com>

[ Upstream commit 81e7b165c45e94188ae8f1134b57f27d1f35452f ]

sound/soc/codecs/lpass-macro-common.c:28 lpass_macro_pds_init() warn: passing zero to 'PTR_ERR'
sound/soc/codecs/lpass-macro-common.c:38 lpass_macro_pds_init() warn: passing zero to 'PTR_ERR'
sound/soc/codecs/lpass-macro-common.c:54 lpass_macro_pds_init() warn: passing zero to 'ERR_PTR'

dev_pm_domain_attach_by_name() may return NULL, set 'ret' as
-ENODATA to fix this warning.

Fixes: 1a8ee4cf8418 ("ASoC: codecs: Fix error handling in power domain init and exit handlers")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
Link: https://lore.kernel.org/r/20220516120909.36356-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/codecs/lpass-macro-common.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/lpass-macro-common.c b/sound/soc/codecs/lpass-macro-common.c
index 3c661fd61173..1b9082d237c1 100644
--- a/sound/soc/codecs/lpass-macro-common.c
+++ b/sound/soc/codecs/lpass-macro-common.c
@@ -25,7 +25,7 @@ struct lpass_macro *lpass_macro_pds_init(struct device *dev)
 
 	l_pds->macro_pd = dev_pm_domain_attach_by_name(dev, "macro");
 	if (IS_ERR_OR_NULL(l_pds->macro_pd)) {
-		ret = PTR_ERR(l_pds->macro_pd);
+		ret = l_pds->macro_pd ? PTR_ERR(l_pds->macro_pd) : -ENODATA;
 		goto macro_err;
 	}
 
@@ -35,7 +35,7 @@ struct lpass_macro *lpass_macro_pds_init(struct device *dev)
 
 	l_pds->dcodec_pd = dev_pm_domain_attach_by_name(dev, "dcodec");
 	if (IS_ERR_OR_NULL(l_pds->dcodec_pd)) {
-		ret = PTR_ERR(l_pds->dcodec_pd);
+		ret = l_pds->dcodec_pd ? PTR_ERR(l_pds->dcodec_pd) : -ENODATA;
 		goto dcodec_err;
 	}
 
-- 
2.35.1