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SubjectRe: [PATCH 2/4] mfd: Add ROHM BD9571MWV-M MFD PMIC driver
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On 04/24/2017 01:38 PM, Lee Jones wrote:
> On Sun, 16 Apr 2017, Marek Vasut wrote:

[...]

>> +static int bd9571mwv_identify(struct bd9571mwv *bd)
>> +{
>> + struct device *dev = bd->dev;
>> + unsigned int value;
>> + int ret;
>> +
>> + ret = regmap_read(bd->regmap, BD9571MWV_VENDOR_CODE, &value);
>> + if (ret) {
>> + dev_err(dev, "Failed to read vendor code register\n");
>
> Nit: Don't you care what the return value is?

Not really, but I added the reporting. I wonder whether it shouldn't be
the regmap which reports those kinds of failures, just like ie. when
k*alloc() fails.

>> + return ret;
>> + }
>> +
>> + if (value != BD9571MWV_VENDOR_CODE_VAL) {
>> + dev_err(dev, "Invalid vendor code ID %02x (expected %02x)\n",
>> + value, BD9571MWV_VENDOR_CODE_VAL);
>> + return -EINVAL;
>> + }
>> +
>> + ret = regmap_read(bd->regmap, BD9571MWV_PRODUCT_CODE, &value);
>> + if (ret) {
>> + dev_err(dev, "Failed to read product code register\n");
>
> Same.

And fixed globally ...

--
Best regards,
Marek Vasut

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