linux-kernel - Re: [PATCH v2 5/5] regulator: qcom: Rework to single platform device

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Message-ID: <CAJAp7OjCswEwXAmqB0kHeNBdZEN0EQ1aYnXF9g9YNQehAb+Njg@mail.gmail.com>
Date:	Mon, 6 Apr 2015 09:59:36 -0700
From:	Bjorn Andersson <bjorn@...o.se>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	Bjorn Andersson <bjorn.andersson@...ymobile.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Andy Gross <agross@...eaurora.org>,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-arm-msm <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH v2 5/5] regulator: qcom: Rework to single platform device

On Thu, Apr 2, 2015 at 4:02 PM, Stephen Boyd <sboyd@...eaurora.org> wrote:
> On 04/01/15 15:55, Bjorn Andersson wrote:
>> +static int rpm_reg_probe(struct platform_device *pdev)
>> +{
>> +     const struct rpm_regulator_data *reg;
>> +     const struct of_device_id *match;
>> +     struct regulator_config config = { };
>> +     struct regulator_dev *rdev;
>> +     struct qcom_rpm_reg *vreg;
>>
>> -     ret = rpm_reg_of_parse(pdev->dev.of_node, &vreg->desc, &config);
>> -     if (ret)
>> -             return ret;
>> +     match = of_match_device(rpm_of_match, &pdev->dev);
>> +     for (reg = match->data; reg->name; reg++) {
>> +             vreg = devm_kmalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
>> +             if (!vreg) {
>> +                     dev_err(&pdev->dev, "failed to allocate vreg\n");
>
> Please remove useless error message on allocation failures.
>

I didn't want to touch this line, to keep the diff as clean as
possible. But I forgot about the promised patch to clean up this and
the rpm reference retrieval.

Sorry about that - will prepare the patch and send it out.

[..]

>>
>> -     rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config);
>> -     if (IS_ERR(rdev)) {
>> -             dev_err(&pdev->dev, "can't register regulator\n");
>> -             return PTR_ERR(rdev);
>> +             config.dev = &pdev->dev;
>> +             config.driver_data = vreg;
>> +             rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config);
>> +             if (IS_ERR(rdev)) {
>> +                     dev_err(&pdev->dev, "can't register regulator\n");
>
> It'd be nice to know which regulator failed to register.
>

I agree, will update this.

Regards,
Bjorn
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