linux-kernel - Re: [PATCH] ath6kl: remove redundant check of status != 0

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Date:   Fri, 5 Apr 2019 12:20:14 +0530
From:   Mukesh Ojha <mojha@...eaurora.org>
To:     Colin King <colin.king@...onical.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S . Miller" <davem@...emloft.net>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ath6kl: remove redundant check of status != 0


On 4/4/2019 7:17 PM, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
>
> The check on status not being zero is redundant as previous code
> paths that set status to an error value break out of the while
> loop and hence status is never non-zero at the check. Remove
> this redundant code.
>
> Addresses-Coverity: ("Logically dead code")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>


Reviewed-by: Mukesh Ojha <mojha@...eaurora.org>

Cheers,
-Mukesh

> ---
>   drivers/net/wireless/ath/ath6kl/htc_pipe.c | 3 ---
>   1 file changed, 3 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath6kl/htc_pipe.c b/drivers/net/wireless/ath/ath6kl/htc_pipe.c
> index 434b66829646..c68848819a52 100644
> --- a/drivers/net/wireless/ath/ath6kl/htc_pipe.c
> +++ b/drivers/net/wireless/ath/ath6kl/htc_pipe.c
> @@ -898,9 +898,6 @@ static int htc_process_trailer(struct htc_target *target, u8 *buffer,
>   			break;
>   		}
>   
> -		if (status != 0)
> -			break;
> -
>   		/* advance buffer past this record for next time around */
>   		buffer += record->len;
>   		len -= record->len;