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hwrng: stm32 - fix unbalanced pm_runtime_enable

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commit af0d4442dd upstream.

No remove function implemented yet in the driver.
Without remove function, the pm_runtime implementation
complains when removing and probing again the driver.

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lionel Debieve 2019-04-01 12:30:45 +02:00 committed by Greg Kroah-Hartman
parent f6cea8a291
commit 934ff312e5
1 changed files with 8 additions and 0 deletions
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8
drivers/char/hw_random/stm32-rng.c
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@ -166,6 +166,13 @@ static int stm32_rng_probe(struct platform_device *ofdev)
return devm_hwrng_register(dev, &priv->rng);
}
static int stm32_rng_remove(struct platform_device *ofdev)
{
pm_runtime_disable(&ofdev->dev);
return 0;
}
#ifdef CONFIG_PM
static int stm32_rng_runtime_suspend(struct device *dev)
{
@ -202,6 +209,7 @@ static struct platform_driver stm32_rng_driver = {
.of_match_table = stm32_rng_match,
},
.probe = stm32_rng_probe,
.remove = stm32_rng_remove,
};
module_platform_driver(stm32_rng_driver);