[PATCH 4/4] gpio: aspeed: Add interfaces for co-processor to grab GPIOs

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

> > +
> > +/**
> > + * aspeed_gpio_copro_grab_gpio - Mark a GPIO used by the coprocessor. The entire
> > + *                               bank gets marked and any access from the ARM will
> > + *                               result in handshaking via callbacks.
> > + * @desc: The GPIO to be marked
> > + */
> > +int aspeed_gpio_copro_grab_gpio(struct gpio_desc *desc)
> > +{
> > +       struct gpio_chip *chip = gpiod_to_chip(desc);
> > +       struct aspeed_gpio *gpio = gpiochip_get_data(chip);
> > +       int rc = 0, bindex, offset = gpio_chip_hwgpio(desc);
> > +       const struct aspeed_gpio_bank *bank = to_bank(offset);
> > +       unsigned long flags;
> > +
> > +       if (!gpio->cf_copro_bankmap)
> > +               gpio->cf_copro_bankmap = kzalloc(gpio->config->nr_gpios >> 3, GFP_KERNEL);
> 
> Someone should free this.

Actually no. The driver doesn't have a remove(), so it doesn't.

Cheers,
Ben.