linux-kernel - Re: [RESEND PATCH v4 6/6] leds: lm36274: Introduce the TI LM36274 LED driver

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Date:   Thu, 30 May 2019 08:38:27 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Jacek Anaszewski <jacek.anaszewski@...il.com>
Cc:     Dan Murphy <dmurphy@...com>, Pavel Machek <pavel@....cz>,
        broonie@...nel.org, lgirdwood@...il.com,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH v4 6/6] leds: lm36274: Introduce the TI LM36274
 LED driver

On Wed, 29 May 2019, Jacek Anaszewski wrote:

> On 5/29/19 3:58 PM, Lee Jones wrote:
> > On Fri, 24 May 2019, Jacek Anaszewski wrote:
> > 
> > > Hi,
> > > 
> > > On 5/23/19 9:09 PM, Dan Murphy wrote:
> > > > Pavel
> > > > 
> > > > Thanks for the review
> > > > 
> > > > On 5/23/19 7:50 AM, Pavel Machek wrote:
> > > > > Hi!
> > > > > 
> > > > > > +++ b/drivers/leds/leds-lm36274.c
> > > > > 
> > > > > > +static int lm36274_parse_dt(struct lm36274 *lm36274_data)
> > > > > > +{
> > > > > > +	struct fwnode_handle *child = NULL;
> > > > > > +	char label[LED_MAX_NAME_SIZE];
> > > > > > +	struct device *dev = &lm36274_data->pdev->dev;
> > > > > > +	const char *name;
> > > > > > +	int child_cnt;
> > > > > > +	int ret = -EINVAL;
> > > > > > +
> > > > > > +	/* There should only be 1 node */
> > > > > > +	child_cnt = device_get_child_node_count(dev);
> > > > > > +	if (child_cnt != 1)
> > > > > > +		return ret;
> > > > > 
> > > > > I'd do explicit "return -EINVAL" here.
> > > > > 
> > > > 
> > > > ACK
> > > > 
> > > > > > +static int lm36274_probe(struct platform_device *pdev)
> > > > > > +{
> > > > > > +	struct ti_lmu *lmu = dev_get_drvdata(pdev->dev.parent);
> > > > > > +	struct lm36274 *lm36274_data;
> > > > > > +	int ret;
> > > > > > +
> > > > > > +	lm36274_data = devm_kzalloc(&pdev->dev, sizeof(*lm36274_data),
> > > > > > +				    GFP_KERNEL);
> > > > > > +	if (!lm36274_data) {
> > > > > > +		ret = -ENOMEM;
> > > > > > +		return ret;
> > > > > > +	}
> > > > > 
> > > > > And certainly do "return -ENOMEM" explicitly here.
> > > > > 
> > > > 
> > > > ACK
> > > > 
> > > > > Acked-by: Pavel Machek <pavel@....cz>
> > > 
> > > I've done all amendments requested by Pavel and updated branch
> > > ib-leds-mfd-regulator on linux-leds.git, but in the same time
> > 
> > What do you mean by updated?  You cannot update an 'ib' (immutable
> > branch).  Immutable means that it cannot change, by definition.
> 
> We have already talked about that. Nobody has pulled so the branch
> could have been safely updated.

You have no sure way to know that.  And since I have no way to know,
or faith that you won't update it again, pulling it now/at all would
seem like a foolish thing to do.

Until you can provide me with an assurance that you will not keep
updating/changing the supposedly immutable pull-requests you send out,
I won't be pulling any more in.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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