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powerpc/sgy_cts1000: Fix gpio_halt_cb()'s signature

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Halt callback in struct machdep_calls is declared with __noreturn
attribute, so omitting that attribute in gpio_halt_cb()'s signatrue
results in compilation error.

Change the signature to address the problem as well as change the code
of the function to avoid ever returning from the function.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Scott Wood <oss@buserror.net>
This commit is contained in:
Andrey Smirnov 2016-07-25 21:45:01 -07:00 committed by Scott Wood
parent 49bf9279cd
commit 625f3eea40
1 changed files with 5 additions and 3 deletions
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8
arch/powerpc/platforms/85xx/sgy_cts1000.c
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@ -38,18 +38,18 @@ static void gpio_halt_wfn(struct work_struct *work)
}
static DECLARE_WORK(gpio_halt_wq, gpio_halt_wfn);
static void gpio_halt_cb(void)
static void __noreturn gpio_halt_cb(void)
{
enum of_gpio_flags flags;
int trigger, gpio;
if (!halt_node)
return;
panic("No reset GPIO information was provided in DT\n");
gpio = of_get_gpio_flags(halt_node, 0, &flags);
if (!gpio_is_valid(gpio))
return;
panic("Provided GPIO is invalid\n");
trigger = (flags == OF_GPIO_ACTIVE_LOW);
@ -57,6 +57,8 @@ static void gpio_halt_cb(void)
/* Probably wont return */
gpio_set_value(gpio, trigger);
panic("Halt failed\n");
}
/* This IRQ means someone pressed the power button and it is waiting for us