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

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Message-ID: <20190529135821.GK4574@dell>
Date:   Wed, 29 May 2019 14:58:21 +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 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.

> dropped the merge from the for-next.
> 
> We will proceed further once we clarify the issue of cross-merging
> recently raised again by Linus.
> 

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