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GPIO fix for the v4.19 series:

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- Fix up the interrupt parent for the irqdomains.
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Merge tag 'gpio-v4.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Linus writes:
  "GPIO fix for the v4.19 series:
   - Fix up the interrupt parent for the irqdomains."

* tag 'gpio-v4.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: Assign gpio_irq_chip::parents to non-stack pointer
This commit is contained in:
Greg Kroah-Hartman 2018-10-12 12:56:25 +02:00
parent ef0e75a47c 3e779a2e7f
commit 60bd7be764
2 changed files with 9 additions and 1 deletions
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3
drivers/gpio/gpiolib.c
View file

@ -1682,7 +1682,8 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,
irq_set_chained_handler_and_data(parent_irq, parent_handler,
gpiochip);
gpiochip->irq.parents = &parent_irq;
gpiochip->irq.parent_irq = parent_irq;
gpiochip->irq.parents = &gpiochip->irq.parent_irq;
gpiochip->irq.num_parents = 1;
}

7
include/linux/gpio/driver.h
View file

@ -94,6 +94,13 @@ struct gpio_irq_chip {
*/
unsigned int num_parents;
/**
* @parent_irq:
*
* For use by gpiochip_set_cascaded_irqchip()
*/
unsigned int parent_irq;
/**
* @parents:
*