Re: [PATCH v4] mfd: dm355evm_msp: Refactoring for add_child()

From: Lee Jones
Date: Tue Aug 09 2016 - 05:29:14 EST


On Mon, 08 Aug 2016, SF Markus Elfring wrote:

> >> v4: Further feedback was integrated into this message.
> >
> > This is not a good change-log. What actually changed?
>
> Which kind of information would you find more useful in this case?

That's for you to tell me surely?

If I wanted to know what changed, I would normally look at the patch
change-log. But the change-log in this patch says "I did some
stuff". What stuff did you change? Which review comments did you
tend to?
>
> >> @@ -222,19 +222,20 @@ static struct device *add_child(struct i2c_client *client, const char *name,
> >> status = platform_device_add_resources(pdev, &r, 1);
> >> if (status < 0) {
> >> dev_dbg(&pdev->dev, "can't add irq\n");
> >> - goto err;
> >> + goto put_device;
> >> }
> >> }
> >>
> >> status = platform_device_add(pdev);
> >> + if (status)
> >> + goto put_device;
> >>
> >> -err:
> >> - if (status < 0) {
> >> - platform_device_put(pdev);
> >> - dev_err(&client->dev, "can't add %s dev\n", name);
> >> - return ERR_PTR(status);
> >> - }
> >> return &pdev->dev;
> >> +
> >> +put_device:
> >> + platform_device_put(pdev);
> >> + dev_err(&client->dev, "failed to add device %s\n", name);
> >
> > ... and remove this line.
>
> -Do you really want that this error message should be deleted?
>
> How does this response fit to your request to introduce such a message
> for the function "add_numbered_child" (on 2016-06-08)?
> https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1162299.html
> https://lkml.org/lkml/2016/6/8/467

You've lost the context. The "..." is meant to intimate that it
follows on from a previous comment. In this case:

> > status = platform_device_add_data(pdev, pdata, pdata_len);
> > if (status < 0) {
> > dev_dbg(&pdev->dev, "can't add platform_data\n");
>
> Please take the opportunity to convert these to dev_err()s.

So, convert the specific dev_dbg() calls to dev_err() and remove the
contentless one at the bottom.

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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