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From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz,
	tiwai@suse.com, robin.murphy@arm.com, yangyingliang@huawei.com
Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
	Jiasheng Jiang <jiasheng@iscas.ac.cn>
Subject: [PATCH] ASoC: dwc-i2s: Handle errors for clk_enable
Date: Tue,  1 Mar 2022 16:47:42 +0800	[thread overview]
Message-ID: <20220301084742.3751939-1-jiasheng@iscas.ac.cn> (raw)

As the potential failure of the clk_enable(),
it should be better to check it, as same as clk_prepare_enable().

Fixes: c9afc1834e81 ("ASoC: dwc: Disallow building designware_pcm as a module")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
 sound/soc/dwc/dwc-i2s.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c
index 5cb58929090d..1edac3e10f34 100644
--- a/sound/soc/dwc/dwc-i2s.c
+++ b/sound/soc/dwc/dwc-i2s.c
@@ -403,9 +403,13 @@ static int dw_i2s_runtime_suspend(struct device *dev)
 static int dw_i2s_runtime_resume(struct device *dev)
 {
 	struct dw_i2s_dev *dw_dev = dev_get_drvdata(dev);
+	int ret;
 
-	if (dw_dev->capability & DW_I2S_MASTER)
-		clk_enable(dw_dev->clk);
+	if (dw_dev->capability & DW_I2S_MASTER) {
+		ret = clk_enable(dw_dev->clk);
+		if (ret)
+			return ret;
+	}
 	return 0;
 }
 
@@ -422,10 +426,13 @@ static int dw_i2s_resume(struct snd_soc_component *component)
 {
 	struct dw_i2s_dev *dev = snd_soc_component_get_drvdata(component);
 	struct snd_soc_dai *dai;
-	int stream;
+	int stream, ret;
 
-	if (dev->capability & DW_I2S_MASTER)
-		clk_enable(dev->clk);
+	if (dev->capability & DW_I2S_MASTER) {
+		ret = clk_enable(dev->clk);
+		if (ret)
+			return ret;
+	}
 
 	for_each_component_dais(component, dai) {
 		for_each_pcm_streams(stream)
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz,
	tiwai@suse.com, robin.murphy@arm.com, yangyingliang@huawei.com
Cc: alsa-devel@alsa-project.org,
	Jiasheng Jiang <jiasheng@iscas.ac.cn>,
	linux-kernel@vger.kernel.org
Subject: [PATCH] ASoC: dwc-i2s: Handle errors for clk_enable
Date: Tue,  1 Mar 2022 16:47:42 +0800	[thread overview]
Message-ID: <20220301084742.3751939-1-jiasheng@iscas.ac.cn> (raw)

As the potential failure of the clk_enable(),
it should be better to check it, as same as clk_prepare_enable().

Fixes: c9afc1834e81 ("ASoC: dwc: Disallow building designware_pcm as a module")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
 sound/soc/dwc/dwc-i2s.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c
index 5cb58929090d..1edac3e10f34 100644
--- a/sound/soc/dwc/dwc-i2s.c
+++ b/sound/soc/dwc/dwc-i2s.c
@@ -403,9 +403,13 @@ static int dw_i2s_runtime_suspend(struct device *dev)
 static int dw_i2s_runtime_resume(struct device *dev)
 {
 	struct dw_i2s_dev *dw_dev = dev_get_drvdata(dev);
+	int ret;
 
-	if (dw_dev->capability & DW_I2S_MASTER)
-		clk_enable(dw_dev->clk);
+	if (dw_dev->capability & DW_I2S_MASTER) {
+		ret = clk_enable(dw_dev->clk);
+		if (ret)
+			return ret;
+	}
 	return 0;
 }
 
@@ -422,10 +426,13 @@ static int dw_i2s_resume(struct snd_soc_component *component)
 {
 	struct dw_i2s_dev *dev = snd_soc_component_get_drvdata(component);
 	struct snd_soc_dai *dai;
-	int stream;
+	int stream, ret;
 
-	if (dev->capability & DW_I2S_MASTER)
-		clk_enable(dev->clk);
+	if (dev->capability & DW_I2S_MASTER) {
+		ret = clk_enable(dev->clk);
+		if (ret)
+			return ret;
+	}
 
 	for_each_component_dais(component, dai) {
 		for_each_pcm_streams(stream)
-- 
2.25.1


             reply	other threads:[~2022-03-01  8:48 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-01  8:47 Jiasheng Jiang [this message]
2022-03-01  8:47 ` [PATCH] ASoC: dwc-i2s: Handle errors for clk_enable Jiasheng Jiang
2022-03-02 17:00 ` Mark Brown
2022-03-02 17:00   ` Mark Brown

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