Re: [PATCH v2 06/23] gpio: add SRCU infrastructure to struct gpio_desc

From: Bartosz Golaszewski
Date: Mon Feb 05 2024 - 09:04:54 EST


On Mon, 5 Feb 2024 14:57:45 +0100, Andy Shevchenko
<andriy.shevchenko@xxxxxxxxxxxxxxx> said:
> On Mon, Feb 05, 2024 at 02:54:08PM +0100, Bartosz Golaszewski wrote:
>> On Mon, Feb 5, 2024 at 2:48 PM Andy Shevchenko
>> <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
>> > On Mon, Feb 05, 2024 at 10:34:01AM +0100, Bartosz Golaszewski wrote:
>
> ...
>
>> > > + for (j = 0; j < i; j++)
>> > > + cleanup_srcu_struct(&desc->srcu);
>> >
>> > What does this loop mean?
>>
>> I open-coded it because I want to store the value of i to go back and
>> destroy the SRCU structs on failure.
>
> Where/how is j being used?
>

In this bit:

for (i = 0; i < gc->ngpio; i++) {
struct gpio_desc *desc = &gdev->descs[i];

ret = init_srcu_struct(&desc->srcu);
if (ret) {
for (j = 0; j < i; j++)
cleanup_srcu_struct(&desc->srcu);
goto err_remove_of_chip;
}

Bart

>> > > + goto err_remove_of_chip;
>> > > + }
>
> --
> With Best Regards,
> Andy Shevchenko
>
>
>