Richard Henderson <richard.hender...@linaro.org> writes:
> The err parameter is non-zero if and only if an error occured. > Use this instead of ret == -1 for determining if we need to > update the saved errno. > > This fixes the errno setting of SYS_ISTTY, which returns 0 on > error, not -1. > > Signed-off-by: Richard Henderson <richard.hender...@linaro.org> Reviewed-by: Alex Bennée <alex.ben...@linaro.org> -- Alex Bennée