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authorHans de Goede <hdegoede@redhat.com>2017-06-23 09:26:13 +0200
committerLinus Walleij <linus.walleij@linaro.org>2017-06-29 14:55:08 +0200
commitc06632ea054c49510efacb42c52aab693c45b7ba (patch)
parentad537b822577fcc143325786cd6ad50d7b9df31c (diff)
gpio: acpi: Skip _AEI entries without a handler rather then aborting the scangpio-v4.12-4
acpi_walk_resources will stop as soon as the callback passed in returns an error status. On a x86 tablet I have the first GpioInt in the _AEI resource list has no handler defined in the DSDT, causing acpi_walk_resources to abort scanning the rest of the resource list, which does define valid ACPI GPIO events. This commit changes the return for not finding a handler from AE_BAD_PARAMETER to AE_OK so that the rest of the resource list will get scanned normally in case of missing event handlers. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 2185232da823..8fa5fcd00e9a 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -201,7 +201,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
handler = acpi_gpio_irq_handler_evt;
if (!handler)
+ return AE_OK;
pin = acpi_gpiochip_pin_to_gpio_offset(chip->gpiodev, pin);
if (pin < 0)

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