linux-kernel - Re: [PATCH 3/3] pinctrl: qcom-spmi-mpp: Fix input value report

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Date:	Thu, 9 Apr 2015 09:03:55 -0700
From:	Bjorn Andersson <bjorn.andersson@...ymobile.com>
To:	"Ivan T. Ivanov" <ivan.ivanov@...aro.org>
CC:	Linus Walleij <linus.walleij@...aro.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH 3/3] pinctrl: qcom-spmi-mpp: Fix input value report

On Thu 09 Apr 08:18 PDT 2015, Ivan T. Ivanov wrote:

> Fix interpretation of the pmic_mpp_read() return code,
> negative value means an error.
> 
> Signed-off-by: Ivan T. Ivanov <ivan.ivanov@...aro.org>
> ---
>  drivers/pinctrl/qcom/pinctrl-spmi-mpp.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
> index 8f36c5f..8f6c7be 100644
> --- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
> +++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
> @@ -576,10 +576,11 @@ static void pmic_mpp_config_dbg_show(struct pinctrl_dev *pctldev,
> 
>  		if (pad->input_enabled) {
>  			ret = pmic_mpp_read(state, pad, PMIC_MPP_REG_RT_STS);
> -			if (!ret) {
> -				ret &= PMIC_MPP_REG_RT_STS_VAL_MASK;
> -				pad->out_value = ret;
> -			}
> +			if (ret < 0)
> +				return;
> +
> +			ret &= PMIC_MPP_REG_RT_STS_VAL_MASK;
> +			pad->out_value = ret;

Same as with the gpio driver.

Reviewed-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>

Regards,
Bjrn
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