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| author | William Breathitt Gray <william.gray@linaro.org> | 2022-08-18 12:28:15 -0400 |
|---|---|---|
| committer | Bartosz Golaszewski <brgl@bgdev.pl> | 2022-09-15 10:29:12 +0200 |
| commit | c95671a3e77ca6f1ed42e891d1fef2ef166a7fdc (patch) | |
| tree | efa0012cea83a7b3bdf88d0e09590ab1f6c1cd55 /drivers/gpio/gpio-ws16c48.c | |
| parent | c6074f3fcf8b67acf8e3bdf678ace1f9c18dfb9e (diff) | |
| download | linux-c95671a3e77ca6f1ed42e891d1fef2ef166a7fdc.tar.gz linux-c95671a3e77ca6f1ed42e891d1fef2ef166a7fdc.tar.bz2 linux-c95671a3e77ca6f1ed42e891d1fef2ef166a7fdc.zip | |
gpio: ws16c48: Ensure number of irq matches number of base
The ws16c48 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-ws16c48.c')
| -rw-r--r-- | drivers/gpio/gpio-ws16c48.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-ws16c48.c b/drivers/gpio/gpio-ws16c48.c index b098f2dc196b..88410da91aaf 100644 --- a/drivers/gpio/gpio-ws16c48.c +++ b/drivers/gpio/gpio-ws16c48.c @@ -27,7 +27,8 @@ module_param_hw_array(base, uint, ioport, &num_ws16c48, 0); MODULE_PARM_DESC(base, "WinSystems WS16C48 base addresses"); static unsigned int irq[MAX_NUM_WS16C48]; -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, "WinSystems WS16C48 interrupt line numbers"); /** @@ -497,7 +498,7 @@ static struct isa_driver ws16c48_driver = { }, }; -module_isa_driver(ws16c48_driver, num_ws16c48); +module_isa_driver_with_irq(ws16c48_driver, num_ws16c48, num_irq); MODULE_AUTHOR("William Breathitt Gray <vilhelm.gray@gmail.com>"); MODULE_DESCRIPTION("WinSystems WS16C48 GPIO driver"); |