linux-kernel - Re: [PATCH 1/2] soc: qcom: dcc: Signedness bug in config_reset

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Message-ID: <70de4cd6-1bbf-24bb-a5c2-209cc4f8f555@linaro.org>
Date:   Thu, 5 Jan 2023 07:49:42 -0600
From:   Alex Elder <elder@...aro.org>
To:     Dan Carpenter <error27@...il.com>,
        Souradeep Chowdhury <quic_schowdhu@...cinc.com>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 1/2] soc: qcom: dcc: Signedness bug in
 config_reset_write()

On 1/5/23 4:53 AM, Dan Carpenter wrote:
> The "ret" variable needs to be signed for the error handling to work.

The fix looks good.  I'm sorry I missed this one in review.

Reviewed-by: Alex Elder <elder@...aro.org>

> 
> Fixes: 4cbe60cf5ad6 ("soc: qcom: dcc: Add driver support for Data Capture and Compare unit(DCC)")
> Signed-off-by: Dan Carpenter <error27@...il.com>
> ---
>   drivers/soc/qcom/dcc.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/soc/qcom/dcc.c b/drivers/soc/qcom/dcc.c
> index d4101f79cb5d..1e2cbefc1655 100644
> --- a/drivers/soc/qcom/dcc.c
> +++ b/drivers/soc/qcom/dcc.c
> @@ -808,8 +808,9 @@ static ssize_t config_reset_write(struct file *filp,
>   				  const char __user *user_buf, size_t count,
>   				  loff_t *ppos)
>   {
> -	unsigned int val, ret;
> +	unsigned int val;
>   	struct dcc_drvdata *drvdata = filp->private_data;
> +	int ret;
>   
>   	ret = kstrtouint_from_user(user_buf, count, 0, &val);
>   	if (ret < 0)