[PATCH 5.10 094/717] ASoC: wm8994: Fix PM disable depth imbalance on error

Greg Kroah-Hartman
2020-12-28T14:03:40Z

From: Zhang Qilong <zhangqilong3@huawei.com>

[ Upstream commit b8161cbe55a1892a19a318eaebbda92438fa708c ]

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.

Fixes: 57e265c8d71fb ("ASoC: wm8994: Move runtime PM init to platform device init")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20201111041326.1257558-2-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/wm8994.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index fc9ea198ac799..f57884113406b 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -4645,8 +4645,12 @@ static int wm8994_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
pm_runtime_idle(&pdev->dev);

- return devm_snd_soc_register_component(&pdev->dev, &soc_component_dev_wm8994,
+ ret = devm_snd_soc_register_component(&pdev->dev, &soc_component_dev_wm8994,
wm8994_dai, ARRAY_SIZE(wm8994_dai));
+ if (ret < 0)
+ pm_runtime_disable(&pdev->dev);
+
+ return ret;
}

static int wm8994_remove(struct platform_device *pdev)
--
2.27.0