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| author |   William Breathitt Gray <william.gray@linaro.org> | 2022-08-18 12:28:11 -0400 |
|---|---|---|
| committer |   Bartosz Golaszewski <brgl@bgdev.pl> | 2022-09-15 10:28:37 +0200 |
| commit | 0c83a280dc11238f69d9fe2e15186a4aeb1adfe3 (patch) | |
| tree | c08d50616bc6409aa5676fe67d78fa0771e93edf /drivers/counter | |
| parent | isa: Introduce the module_isa_driver_with_irq helper macro (diff) | |
| download | wireguard-linux-0c83a280dc11238f69d9fe2e15186a4aeb1adfe3.tar.xz wireguard-linux-0c83a280dc11238f69d9fe2e15186a4aeb1adfe3.zip | |
counter: 104-quad-8: Ensure number of irq matches number of base
The 104-quad-8 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>
Acked-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Diffstat (limited to 'drivers/counter')
| -rw-r--r-- | drivers/counter/104-quad-8.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/counter/104-quad-8.c b/drivers/counter/104-quad-8.c index 62c2b7ac4339..3f8d1910a9bb 100644 --- a/drivers/counter/104-quad-8.c +++ b/drivers/counter/104-quad-8.c @@ -28,7 +28,8 @@ module_param_hw_array(base, uint, ioport, &num_quad8, 0); MODULE_PARM_DESC(base, "ACCES 104-QUAD-8 base addresses"); static unsigned int irq[max_num_isa_dev(QUAD8_EXTENT)]; -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-QUAD-8 interrupt line numbers"); #define QUAD8_NUM_COUNTERS 8 @@ -1236,7 +1237,7 @@ static struct isa_driver quad8_driver = { } }; -module_isa_driver(quad8_driver, num_quad8); +module_isa_driver_with_irq(quad8_driver, num_quad8, num_irq); MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@gmail.com>"); MODULE_DESCRIPTION("ACCES 104-QUAD-8 driver"); |