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gpio fixes for v6.5

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- fix an irq mapping leak in gpio-sim
 - associate the GPIO device's software node with the irq domain in gpio-sim
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Merge tag 'gpio-fixes-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix an irq mapping leak in gpio-sim

 - associate the GPIO device's software node with the irq domain in
   gpio-sim

* tag 'gpio-fixes-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: sim: pass the GPIO device's software node to irq domain
  gpio: sim: dispose of irq mappings before destroying the irq_sim domain
This commit is contained in:
Linus Torvalds 2023-08-25 09:18:22 -07:00
commit 98c6b8a558
1 changed files with 14 additions and 1 deletions

15
drivers/gpio/gpio-sim.c

@ -291,6 +291,15 @@ static void gpio_sim_mutex_destroy(void *data)
mutex_destroy(lock);
}
static void gpio_sim_dispose_mappings(void *data)
{
struct gpio_sim_chip *chip = data;
unsigned int i;
for (i = 0; i < chip->gc.ngpio; i++)
irq_dispose_mapping(irq_find_mapping(chip->irq_sim, i));
}
static void gpio_sim_sysfs_remove(void *data)
{
struct gpio_sim_chip *chip = data;
@ -402,10 +411,14 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev)
if (!chip->pull_map)
return -ENOMEM;
chip->irq_sim = devm_irq_domain_create_sim(dev, NULL, num_lines);
chip->irq_sim = devm_irq_domain_create_sim(dev, swnode, num_lines);
if (IS_ERR(chip->irq_sim))
return PTR_ERR(chip->irq_sim);
ret = devm_add_action_or_reset(dev, gpio_sim_dispose_mappings, chip);
if (ret)
return ret;
mutex_init(&chip->lock);
ret = devm_add_action_or_reset(dev, gpio_sim_mutex_destroy,
&chip->lock);