[PATCH 5.7 052/166] ASoC: fsl_mqs: Fix unchecked return value for clk_prepare_enable

From: Greg Kroah-Hartman
Date: Tue Jul 14 2020 - 14:55:36 EST


From: Shengjiu Wang <shengjiu.wang@xxxxxxx>

[ Upstream commit 15217d170a4461c1d4c1ea7c497e1fc1122e42a9 ]

Fix unchecked return value for clk_prepare_enable, add error
handler in fsl_mqs_runtime_resume.

Fixes: 9e28f6532c61 ("ASoC: fsl_mqs: Add MQS component driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
Acked-by: Nicolin Chen <nicoleotsuka@xxxxxxxxx>
Link: https://lore.kernel.org/r/5edd68d03def367d96268f1a9a00bd528ea5aaf2.1592888591.git.shengjiu.wang@xxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/soc/fsl/fsl_mqs.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_mqs.c b/sound/soc/fsl/fsl_mqs.c
index b44b134390a39..69aeb0e71844d 100644
--- a/sound/soc/fsl/fsl_mqs.c
+++ b/sound/soc/fsl/fsl_mqs.c
@@ -265,10 +265,20 @@ static int fsl_mqs_remove(struct platform_device *pdev)
static int fsl_mqs_runtime_resume(struct device *dev)
{
struct fsl_mqs *mqs_priv = dev_get_drvdata(dev);
+ int ret;

- clk_prepare_enable(mqs_priv->ipg);
+ ret = clk_prepare_enable(mqs_priv->ipg);
+ if (ret) {
+ dev_err(dev, "failed to enable ipg clock\n");
+ return ret;
+ }

- clk_prepare_enable(mqs_priv->mclk);
+ ret = clk_prepare_enable(mqs_priv->mclk);
+ if (ret) {
+ dev_err(dev, "failed to enable mclk clock\n");
+ clk_disable_unprepare(mqs_priv->ipg);
+ return ret;
+ }

if (mqs_priv->use_gpr)
regmap_write(mqs_priv->regmap, IOMUXC_GPR2,
--
2.25.1