[PATCH 2/2] clocksource/drivers/keystone: Fix bad NO_IRQ usage

[santosh shilimkar]

On 9/30/2015 3:08 AM, Daniel Lezcano wrote:
> The current code assumes the 'irq_of_parse_and_map' will return NO_IRQ in case
> of failure. Unfortunately, the NO_IRQ is not consistent across the different
> architectures and we must not rely on it.
>
> NO_IRQ is equal to '-1' on ARM and 'irq_of_parse_and_map' returns '0' in case
> of an error. Hence, the latter won't be detected and will lead to a crash.
>
> Fix this by just checking 'irq' is different from zero.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano at linaro.org>
> ---
>   drivers/clocksource/timer-keystone.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
Acked-by: Santosh Shilimkar <ssantosh at kernel.org>