Messages in this thread |  | | Date | Fri, 27 Nov 2020 10:44:14 +0100 | From | Krzysztof Kozlowski <> | Subject | Re: [PATCH] hwrng: exynos - fix reference leak in exynos_trng_probe |
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On Fri, Nov 27, 2020 at 05:44:46PM +0800, Qinglang Miao wrote: > pm_runtime_get_sync will increment pm usage counter even it > failed. Forgetting to putting operation will result in a > reference leak here. > > A new function pm_runtime_resume_and_get is introduced in > [0] to keep usage counter balanced. So We fix the reference > leak by replacing it with new funtion. > > [0] dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
Do not put such dependencies into the commit message - it does not bring useful information to the history. Store it under '---' separator.
> > Fixes: 6cd225cc5d8a ("hwrng: exynos - add Samsung Exynos True RNG driver") > Reported-by: Hulk Robot <hulkci@huawei.com> > Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> > --- > drivers/char/hw_random/exynos-trng.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/char/hw_random/exynos-trng.c b/drivers/char/hw_random/exynos-trng.c > index 8e1fe3f8d..666246bc8 100644 > --- a/drivers/char/hw_random/exynos-trng.c > +++ b/drivers/char/hw_random/exynos-trng.c > @@ -132,7 +132,7 @@ static int exynos_trng_probe(struct platform_device *pdev) > return PTR_ERR(trng->mem); > > pm_runtime_enable(&pdev->dev); > - ret = pm_runtime_get_sync(&pdev->dev); > + ret = pm_runtime_resume_and_get(&pdev->dev);
This cannot be applied. Fix it by replacing err_clock label with this one.
Best regards, Krzysztof
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