Re: [PATCH] PM / domains: Fix 'may be used uninitialized' build warning

From: Rafael J. Wysocki
Date: Thu Jan 05 2017 - 20:33:06 EST


On Friday, December 30, 2016 11:34:08 AM Augusto Mecking Caringi wrote:
> This patch fixes the following gcc warning:
>
> drivers/base/power/domain.c: In function âgenpd_runtime_resumeâ:
> drivers/base/power/domain.c:642:14: warning: âtime_startâ may be used
> uninitialized in this function [-Wmaybe-uninitialized]
> elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start)
>
> The same problem (in another function in this same file) was fixed in
> commit d33d5a6c88fc (avoid spurious "may be used uninitialized" warning)
>
> Signed-off-by: Augusto Mecking Caringi <augustocaringi@xxxxxxxxx>
> ---
> drivers/base/power/domain.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
> index a5e1262..2997026 100644
> --- a/drivers/base/power/domain.c
> +++ b/drivers/base/power/domain.c
> @@ -626,6 +626,7 @@ static int genpd_runtime_resume(struct device *dev)
>
> out:
> /* Measure resume latency. */
> + time_start = 0;
> if (timed && runtime_pm)
> time_start = ktime_get();

Applied.

Thanks,
Rafael