From: Linus Walleij linus.walleij@linaro.org
[ Upstream commit 48057ed1840fde9239b1e000bea1a0a1f07c5e99 ]
The new API for registering a gpio_irq_chip along with a gpio_chip has a different semantic ordering than the old API which added the irqchip explicitly after registering the gpio_chip.
Move the calls to add the gpio_irq_chip *last* in the function, so that the different hooks setting up OF and ACPI and machine gpio_chips are called *before* we try to register the interrupts, preserving the elder semantic order.
This cropped up in the PL061 driver which used to work fine with no special ACPI quirks, but started to misbehave using the new API.
Fixes: e0d897289813 ("gpio: Implement tighter IRQ chip integration") Cc: Thierry Reding treding@nvidia.com Cc: Grygorii Strashko grygorii.strashko@ti.com Cc: Andy Shevchenko andy.shevchenko@gmail.com Reported-by: Wei Xu xuwei5@hisilicon.com Tested-by: Wei Xu xuwei5@hisilicon.com Reported-by: Andy Shevchenko andy.shevchenko@gmail.com Signed-off-by: Linus Walleij linus.walleij@linaro.org Link: https://lore.kernel.org/r/20190820080527.11796-1-linus.walleij@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpio/gpiolib.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 4f333d6f2e230..42f9e00ff4d1b 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1371,21 +1371,13 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, if (status) goto err_remove_from_list;
- status = gpiochip_irqchip_init_valid_mask(chip); - if (status) - goto err_remove_from_list; - status = gpiochip_alloc_valid_mask(chip); if (status) - goto err_remove_irqchip_mask; - - status = gpiochip_add_irqchip(chip, lock_key, request_key); - if (status) - goto err_free_gpiochip_mask; + goto err_remove_from_list;
status = of_gpiochip_add(chip); if (status) - goto err_remove_chip; + goto err_free_gpiochip_mask;
status = gpiochip_init_valid_mask(chip); if (status) @@ -1411,6 +1403,14 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data,
machine_gpiochip_add(chip);
+ status = gpiochip_irqchip_init_valid_mask(chip); + if (status) + goto err_remove_acpi_chip; + + status = gpiochip_add_irqchip(chip, lock_key, request_key); + if (status) + goto err_remove_irqchip_mask; + /* * By first adding the chardev, and then adding the device, * we get a device node entry in sysfs under @@ -1422,21 +1422,21 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, if (gpiolib_initialized) { status = gpiochip_setup_dev(gdev); if (status) - goto err_remove_acpi_chip; + goto err_remove_irqchip; } return 0;
+err_remove_irqchip: + gpiochip_irqchip_remove(chip); +err_remove_irqchip_mask: + gpiochip_irqchip_free_valid_mask(chip); err_remove_acpi_chip: acpi_gpiochip_remove(chip); err_remove_of_chip: gpiochip_free_hogs(chip); of_gpiochip_remove(chip); -err_remove_chip: - gpiochip_irqchip_remove(chip); err_free_gpiochip_mask: gpiochip_free_valid_mask(chip); -err_remove_irqchip_mask: - gpiochip_irqchip_free_valid_mask(chip); err_remove_from_list: spin_lock_irqsave(&gpio_lock, flags); list_del(&gdev->list);