diff options
| author | William Breathitt Gray <william.gray@linaro.org> | 2022-08-18 19:28:12 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <brgl@bgdev.pl> | 2022-09-15 11:28:47 +0300 |
| commit | 443ad0f730172f05fd78c9e9e68c3dfa5555b061 (patch) | |
| tree | 07265ae7c306814bf213ca0734ef7c4ee3919d87 /drivers/gpio/gpio-104-dio-48e.c | |
| parent | 0c83a280dc11238f69d9fe2e15186a4aeb1adfe3 (diff) | |
| download | linux-443ad0f730172f05fd78c9e9e68c3dfa5555b061.tar.xz | |
gpio: 104-dio-48e: Ensure number of irq matches number of base
The 104-dio-48e module calls devm_request_irq() for each device. If the
number of irq passed to the module does not match the number of base, a
default value of 0 is passed to devm_request_irq(). IRQ 0 is probably
not what the user wants, so utilize the module_isa_driver_with_irq macro
to ensure the number of irq matches the number of base.
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'drivers/gpio/gpio-104-dio-48e.c')
| -rw-r--r-- | drivers/gpio/gpio-104-dio-48e.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c index a41551870759..8b5172802188 100644 --- a/drivers/gpio/gpio-104-dio-48e.c +++ b/drivers/gpio/gpio-104-dio-48e.c @@ -34,7 +34,8 @@ module_param_hw_array(base, uint, ioport, &num_dio48e, 0); MODULE_PARM_DESC(base, "ACCES 104-DIO-48E base addresses"); static unsigned int irq[MAX_NUM_DIO48E]; -module_param_hw_array(irq, uint, irq, NULL, 0); +static unsigned int num_irq; +module_param_hw_array(irq, uint, irq, &num_irq, 0); MODULE_PARM_DESC(irq, "ACCES 104-DIO-48E interrupt line numbers"); #define DIO48E_NUM_PPI 2 @@ -358,7 +359,7 @@ static struct isa_driver dio48e_driver = { .name = "104-dio-48e" }, }; -module_isa_driver(dio48e_driver, num_dio48e); +module_isa_driver_with_irq(dio48e_driver, num_dio48e, num_irq); MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@gmail.com>"); MODULE_DESCRIPTION("ACCES 104-DIO-48E GPIO driver"); |