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gpio: Fix the no return statement warning

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In commit 2425876167 ("gpiolib: Add support for the irqdomain which
doesn't use irq_fwspec as arg") we have changed the return type of
gpiochip_populate_parent_fwspec_twocell/fourcell() from void to void *,
but forgot to add a return statement for these two dummy functions.
Add "return NULL" to fix the build warnings.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Link: https://lore.kernel.org/r/20200116095003.30324-1-haokexin@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Kevin Hao 2020-01-16 17:50:03 +08:00 committed by Linus Walleij
parent 7a9f4460f7
commit 9c6722d85e
1 changed files with 2 additions and 0 deletions
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2
include/linux/gpio/driver.h
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@ -549,12 +549,14 @@ static inline void *gpiochip_populate_parent_fwspec_twocell(struct gpio_chip *ch
unsigned int parent_hwirq,
unsigned int parent_type)
{
return NULL;
}
static inline void *gpiochip_populate_parent_fwspec_fourcell(struct gpio_chip *chip,
unsigned int parent_hwirq,
unsigned int parent_type)
{
return NULL;
}
#endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */