[stable 4.19][PATCH 05/17] hwrng: stm32 - fix unbalanced pm_runtime_enable
From: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: 2019-11-28 16:50:14
Also in:
lkml, stable
Subsystem:
hardware random number generator core, the rest · Maintainers:
Olivia Mackall, Herbert Xu, Linus Torvalds
From: Lionel Debieve <redacted> commit af0d4442dd6813de6e77309063beb064fa8e89ae 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 <redacted> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Cc: stable <redacted> # 4.19 Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> --- drivers/char/hw_random/stm32-rng.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/char/hw_random/stm32-rng.c b/drivers/char/hw_random/stm32-rng.c
index 042860d97b15..37b338a76ba4 100644
--- a/drivers/char/hw_random/stm32-rng.c
+++ b/drivers/char/hw_random/stm32-rng.c@@ -169,6 +169,13 @@ 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) {
@@ -210,6 +217,7 @@ 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);
--
2.17.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel