On Thursday 20 July 2017 12:14 PM, Keerthy wrote:
>
>
> On Wednesday 19 July 2017 04:40 PM, Johan Hovold wrote:
>> On Tue, Jul 18, 2017 at 04:27:14PM +0530, Keerthy wrote:
>>> Currently davinci_gpio_irq_setup return value is ignored. Handle the
>>> return value appropriately.
>>>
>>> Signed-off-by: Keerthy <j-keerthy@xxxxxx>
>>> ---
>>> drivers/gpio/gpio-davinci.c | 18 +++++++++++++-----
>>> 1 file changed, 13 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
>>> index 2c88054..932f270 100644
>>> --- a/drivers/gpio/gpio-davinci.c
>>> +++ b/drivers/gpio/gpio-davinci.c
>>> @@ -233,15 +233,23 @@ static int davinci_gpio_probe(struct platform_device *pdev)
>>> chips->regs[bank] = gpio_base + offset_array[bank];
>>>
>>> ret = devm_gpiochip_add_data(dev, &chips->chip, chips);
>>> + if (ret)
>>> + goto err;
>>> +
>>> + platform_set_drvdata(pdev, chips);
>>> + ret = davinci_gpio_irq_setup(pdev);
>>> if (ret) {
>>> - ctrl_num = 0;
>>> - bank_base = 0;
>>> - return ret;
>>> + platform_set_drvdata(pdev, NULL);
>>> + goto err;
>>> }
>>>
>>> - platform_set_drvdata(pdev, chips);
>>> - davinci_gpio_irq_setup(pdev);
>>> return 0;
>>
>> There's a separate but related bug here too as the clk_prepare_enable()
>> in davinci_gpio_irq_setup() is never balanced on driver unbind.
>
> Yes Johan. I will send that as a separate patch.
This is already fixed in the latest kernel:
commit 6dc0048cff988858254fcc26becfc1e9753efa79
Author: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
Date: Tue May 23 14:48:57 2017 +0530
Regards,
Keerthy
>
>>
>> Johan
>>
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