| Message ID | 1457682562-21219-5-git-send-email-k.kozlowski@samsung.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
W dniu 11.03.2016 o 16:49, Krzysztof Kozlowski pisze: > 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> > --- > drivers/char/hw_random/exynos-rng.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/char/hw_random/exynos-rng.c b/drivers/char/hw_random/exynos-rng.c > index 68c349bf66a0..cba1ff538c46 100644 > --- a/drivers/char/hw_random/exynos-rng.c > +++ b/drivers/char/hw_random/exynos-rng.c > @@ -154,6 +154,13 @@ static int exynos_rng_probe(struct platform_device *pdev) > return ret; > } > > +static int exynos_rng_remove(struct platform_device *pdev) > +{ > + pm_runtime_disable(&pdev->dev); > + This is not sufficient. pm_runtime_dont_use_autosuspend() is also necessary here. I will send a v2. BTW, no problem if it is too late for taking this for v4.6. If this patchset misses merge window I'll resend it later. Best regards, Krzysztof -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/char/hw_random/exynos-rng.c b/drivers/char/hw_random/exynos-rng.c index 68c349bf66a0..cba1ff538c46 100644 --- a/drivers/char/hw_random/exynos-rng.c +++ b/drivers/char/hw_random/exynos-rng.c @@ -154,6 +154,13 @@ static int exynos_rng_probe(struct platform_device *pdev) return ret; } +static int exynos_rng_remove(struct platform_device *pdev) +{ + 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); @@ -211,6 +218,7 @@ 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);
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> --- drivers/char/hw_random/exynos-rng.c | 8 ++++++++ 1 file changed, 8 insertions(+)