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SubjectRe: [PATCH 2/4] gpio: davinci: Handle the return value of davinci_gpio_irq_setup function
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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@ti.com>
>> ---
>> 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.

>
> Johan
>

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