[PATCH 5.19 342/717] ASoC: stm: Fix PM disable depth imbalance in stm32_i2s_probe

Greg Kroah-Hartman
2022-10-22T08:19:51Z

From: Zhang Qilong <zhangqilong3@huawei.com>

[ Upstream commit 93618e5e05a3ce4aa6750268c5025bdb4cb7dc6e ]

The pm_runtime_enable will increase power disable depth. Thus
a pairing decrement is needed on the error handling path to
keep it balanced according to context. We fix it by moving
pm_runtime_enable to the endding of stm32_i2s_probe.

Fixes:32a956a1fadf ("ASoC: stm32: i2s: add pm_runtime support")

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://lore.kernel.org/r/20220927142640.64647-1-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/stm/stm32_i2s.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c
index ac5dff4d1677..d9e622f4c422 100644
--- a/sound/soc/stm/stm32_i2s.c
+++ b/sound/soc/stm/stm32_i2s.c
@@ -1135,8 +1135,6 @@ static int stm32_i2s_probe(struct platform_device *pdev)
return dev_err_probe(&pdev->dev, PTR_ERR(i2s->regmap),
"Regmap init error\n");

- pm_runtime_enable(&pdev->dev);
-
ret = snd_dmaengine_pcm_register(&pdev->dev, &stm32_i2s_pcm_config, 0);
if (ret)
return dev_err_probe(&pdev->dev, ret, "PCM DMA register error\n");
@@ -1179,6 +1177,8 @@ static int stm32_i2s_probe(struct platform_device *pdev)
FIELD_GET(I2S_VERR_MIN_MASK, val));
}

+ pm_runtime_enable(&pdev->dev);
+
return ret;

error:
--
2.35.1