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
>
