diff mbox

[-next] hwrng: st - Fix missing clk_disable_unprepare() on error in st_rng_probe()

Message ID 1473509022-3478-1-git-send-email-weiyj.lk@gmail.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show

Commit Message

Wei Yongjun Sept. 10, 2016, 12:03 p.m. UTC
From: Wei Yongjun <weiyongjun1@huawei.com>

Fix the missing clk_disable_unprepare() before return
from st_rng_probe() in the error handling case.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/char/hw_random/st-rng.c | 1 +
 1 file changed, 1 insertion(+)




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Comments

Patrice CHOTARD Sept. 12, 2016, 7:27 a.m. UTC | #1
Hi Wey

On 09/10/2016 02:03 PM, Wei Yongjun wrote:
> From: Wei Yongjun <weiyongjun1@huawei.com>
> 
> Fix the missing clk_disable_unprepare() before return
> from st_rng_probe() in the error handling case.
> 
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> ---
>  drivers/char/hw_random/st-rng.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/char/hw_random/st-rng.c b/drivers/char/hw_random/st-rng.c
> index 7e8aa6b..938ec10 100644
> --- a/drivers/char/hw_random/st-rng.c
> +++ b/drivers/char/hw_random/st-rng.c
> @@ -108,6 +108,7 @@ static int st_rng_probe(struct platform_device *pdev)
>  	ret = hwrng_register(&ddata->ops);
>  	if (ret) {
>  		dev_err(&pdev->dev, "Failed to register HW RNG\n");
> +		clk_disable_unprepare(clk);
>  		return ret;
>  	}
>  
> 
> 
> 


Acked-by: Patrice Chotard <patrice.chotard@st.com>

Thanks
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Peter Griffin Sept. 12, 2016, 8:31 a.m. UTC | #2
Hi Wei,

On Sat, 10 Sep 2016, Wei Yongjun wrote:

> From: Wei Yongjun <weiyongjun1@huawei.com>
> 
> Fix the missing clk_disable_unprepare() before return
> from st_rng_probe() in the error handling case.
> 
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> ---
>  drivers/char/hw_random/st-rng.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/char/hw_random/st-rng.c b/drivers/char/hw_random/st-rng.c
> index 7e8aa6b..938ec10 100644
> --- a/drivers/char/hw_random/st-rng.c
> +++ b/drivers/char/hw_random/st-rng.c
> @@ -108,6 +108,7 @@ static int st_rng_probe(struct platform_device *pdev)
>  	ret = hwrng_register(&ddata->ops);
>  	if (ret) {
>  		dev_err(&pdev->dev, "Failed to register HW RNG\n");
> +		clk_disable_unprepare(clk);
>  		return ret;
>  	}
>  
> 

Acked-by: Peter Griffin <peter.griffin@linaro.org>
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Herbert Xu Sept. 13, 2016, 12:41 p.m. UTC | #3
On Sat, Sep 10, 2016 at 12:03:42PM +0000, Wei Yongjun wrote:
> From: Wei Yongjun <weiyongjun1@huawei.com>
> 
> Fix the missing clk_disable_unprepare() before return
> from st_rng_probe() in the error handling case.
> 
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>

Patch applied.  Thanks.
diff mbox

Patch

diff --git a/drivers/char/hw_random/st-rng.c b/drivers/char/hw_random/st-rng.c
index 7e8aa6b..938ec10 100644
--- a/drivers/char/hw_random/st-rng.c
+++ b/drivers/char/hw_random/st-rng.c
@@ -108,6 +108,7 @@  static int st_rng_probe(struct platform_device *pdev)
 	ret = hwrng_register(&ddata->ops);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to register HW RNG\n");
+		clk_disable_unprepare(clk);
 		return ret;
 	}