linux-kernel - Re: [PATCH -next] bus: mhi: ep: remove useless judgement in mhi_ep_ring_add

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Message-ID: <ef12136f-fc4d-05c5-a7bd-66ade28957e4@huawei.com>
Date:   Thu, 17 Mar 2022 11:52:32 +0800
From:   Yu Liao <liaoyu15@...wei.com>
To:     <linux-kernel@...r.kernel.org>
CC:     <manivannan.sadhasivam@...aro.org>, <liwei391@...wei.com>
Subject: Re: [PATCH -next] bus: mhi: ep: remove useless judgement in
 mhi_ep_ring_add_element

Hi Manivannan, I found that 'ret = ' has been removed. If this is intentional,
the check of 'ret' is redundant.

Thanks,

Yu
On 2022/3/17 11:31, Yu Liao wrote:
> Remove the check of 'ret' that is impossible to be non-zero.
> 
> Signed-off-by: Yu Liao <liaoyu15@...wei.com>
> ---
>  drivers/bus/mhi/ep/ring.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/bus/mhi/ep/ring.c b/drivers/bus/mhi/ep/ring.c
> index ac2043e71943..161505cd628f 100644
> --- a/drivers/bus/mhi/ep/ring.c
> +++ b/drivers/bus/mhi/ep/ring.c
> @@ -131,8 +131,6 @@ int mhi_ep_ring_add_element(struct mhi_ep_ring *ring, struct mhi_ring_element *e
>  
>  	mhi_cntrl->write_to_host(mhi_cntrl, (void __iomem *)el, ring->rbase + (old_offset *
>  				 sizeof(*el)), sizeof(*el));
> -	if (ret < 0)
> -		return ret;
>  
>  	return 0;
>  }