Re: [PATCH 10/11] kasan: add missing annotation for end_report()

[Dmitry Vyukov]

On Sun, Feb 9, 2020 at 11:49 PM Jules Irenge <jbi.octave@xxxxxxxxx> wrote:
>
> Sparse reports a warning at end_report()
>
> warning: context imbalance in end_report() - unexpected lock
>
> The root cause is a missing annotation at end_report()
>
> Add the missing annotation __releases(&report_lock)
>
> Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx>

Acked-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx>

> ---
>  mm/kasan/report.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/kasan/report.c b/mm/kasan/report.c
> index 5451624c4e09..8adaa4eaee31 100644
> --- a/mm/kasan/report.c
> +++ b/mm/kasan/report.c
> @@ -87,7 +87,7 @@ static void start_report(unsigned long *flags) __acquires(&report_lock)
>         pr_err("==================================================================\n");
>  }
>
> -static void end_report(unsigned long *flags)
> +static void end_report(unsigned long *flags)  __releases(&report_lock)
>  {
>         pr_err("==================================================================\n");
>         add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
> --
> 2.24.1
>