linux-kernel - Re: [PATCH 1/3] i2c: qcom-geni: Use the correct return value

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Message-ID: <YtTxR/X5+UZW9pZZ@matsya>
Date:   Mon, 18 Jul 2022 11:06:07 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Wolfram Sang <wsa@...nel.org>, linux-arm-msm@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] i2c: qcom-geni: Use the correct return value

On 16-07-22, 20:50, Bjorn Andersson wrote:
> The introduction of GPI support moved things around and instead of
> returning the result from geni_i2c_xfer() the number of messages in the
> request was returned, ignoring the actual result. Fix this.

Thanks for the fix, looking at master_xfer() it does expect error
return, so look good with one nit:

> 
> Fixes: d8703554f4de ("i2c: qcom-geni: Add support for GPI DMA")
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>  drivers/i2c/busses/i2c-qcom-geni.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
> index 6ac402ea58fb..3bec7c782824 100644
> --- a/drivers/i2c/busses/i2c-qcom-geni.c
> +++ b/drivers/i2c/busses/i2c-qcom-geni.c
> @@ -688,7 +688,7 @@ static int geni_i2c_xfer(struct i2c_adapter *adap,
>  	pm_runtime_put_autosuspend(gi2c->se.dev);
>  	gi2c->cur = NULL;
>  	gi2c->err = 0;

Unrelated, should gi2c->err be set to ret here..?

> -	return num;
> +	return ret;
>  }
>  
>  static u32 geni_i2c_func(struct i2c_adapter *adap)
> -- 
> 2.35.1

-- 
~Vinod