linux-kernel - Re: [PATCH] arch/riscv/kernel: remove redundant err variable

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Date:   Thu, 20 Jan 2022 10:56:50 -0800 (PST)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     cgel.zte@...il.com
CC:     oleg@...hat.com, Paul Walmsley <paul.walmsley@...ive.com>,
        aou@...s.berkeley.edu, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, chi.minghao@....com.cn,
        zealci@....com.cn, cgel.zte@...il.com
Subject:     Re: [PATCH] arch/riscv/kernel: remove redundant err variable

On Wed, 12 Jan 2022 00:27:29 PST (-0800), cgel.zte@...il.com wrote:
> From: Minghao Chi <chi.minghao@....com.cn>
>
> Return value from user_regset_copyin() directly instead
> of taking this in another redundant variable.
>
> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: Minghao Chi <chi.minghao@....com.cn>
> Signed-off-by: CGEL ZTE <cgel.zte@...il.com>
> ---
>  arch/riscv/kernel/ptrace.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/arch/riscv/kernel/ptrace.c b/arch/riscv/kernel/ptrace.c
> index 9c0511119bad..a89243730153 100644
> --- a/arch/riscv/kernel/ptrace.c
> +++ b/arch/riscv/kernel/ptrace.c
> @@ -42,12 +42,10 @@ static int riscv_gpr_set(struct task_struct *target,
>  			 unsigned int pos, unsigned int count,
>  			 const void *kbuf, const void __user *ubuf)
>  {
> -	int ret;
>  	struct pt_regs *regs;
>
>  	regs = task_pt_regs(target);
> -	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, regs, 0, -1);
> -	return ret;
> +	return user_regset_copyin(&pos, &count, &kbuf, &ubuf, regs, 0, -1);
>  }
>
>  #ifdef CONFIG_FPU

Thanks, this is on for-next.