diff options
| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2016-03-14 09:07:15 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-10 10:26:32 +0200 |
| commit | 1c8cd7b64efe9f928b0f21eb88cdd9341f30ab85 (patch) | |
| tree | 013f83e508e4ffd8bd2281d4c8761b4e2ce5b467 /drivers/char/hw_random | |
| parent | 35a017009751dc18b365fe9ec8886a2632f42c18 (diff) | |
hwrng: exynos - Disable runtime PM on driver unbind
commit 27d80fa8bccf8d28bef4f89709638efc624fef9a upstream.
Driver enabled runtime PM but did not revert this on removal. Re-binding
of a device triggered warning:
exynos-rng 10830400.rng: Unbalanced pm_runtime_enable!
Fixes: b329669ea0b5 ("hwrng: exynos - Add support for Exynos random number generator")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/hw_random')
| -rw-r--r-- | drivers/char/hw_random/exynos-rng.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/char/hw_random/exynos-rng.c b/drivers/char/hw_random/exynos-rng.c index 7ba0ae060d61..66115ef979b1 100644 --- a/drivers/char/hw_random/exynos-rng.c +++ b/drivers/char/hw_random/exynos-rng.c @@ -155,6 +155,14 @@ static int exynos_rng_probe(struct platform_device *pdev) return ret; } +static int exynos_rng_remove(struct platform_device *pdev) +{ + pm_runtime_dont_use_autosuspend(&pdev->dev); + pm_runtime_disable(&pdev->dev); + + return 0; +} + static int __maybe_unused exynos_rng_runtime_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); @@ -212,6 +220,7 @@ static struct platform_driver exynos_rng_driver = { .of_match_table = exynos_rng_dt_match, }, .probe = exynos_rng_probe, + .remove = exynos_rng_remove, }; module_platform_driver(exynos_rng_driver); |