Re: [PATCH] hwrng: OMAP: Fix assumption that runtime_get_sync will always succeed

Nishanth Menon
2016-06-24T16:47:29Z

On 06/24/2016 11:35 AM, Suman Anna wrote:
[...]
>> diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
>> index 8a1432e8bb80..f30a1870cb64 100644
>> --- a/drivers/char/hw_random/omap-rng.c
>> +++ b/drivers/char/hw_random/omap-rng.c
>> @@ -384,7 +384,11 @@ static int omap_rng_probe(struct platform_device *pdev)
>> }
>>
>> pm_runtime_enable(&pdev->dev);
>> - pm_runtime_get_sync(&pdev->dev);
>> + ret = pm_runtime_get_sync(&pdev->dev);
>> + if (ret) {
>> + dev_err(&pdev->dev, "Failed to runtime_get device: %d\n", ret);
>> + goto err_ioremap;
>
> You need to also add a pm_runtime_put_noidle() on get_sync failures to
> balance the device's power usage_count.
>

Crap, yep, I should have known better. thanks for catching it.. v2
incoming..

--
Regards,
Nishanth Menon