On January 21, 2015 16:15, Varka Bhadram wrote:
> On Wednesday 21 January 2015 09:16 PM, Adam Thomson wrote:
> > This patch adds support for DA9150 Charger & Fuel-Gauge IC Charger.
> >
> > Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@xxxxxxxxxxx>
> > ---
>
> (...)
>
> > +static int da9150_charger_register_irq(struct platform_device *pdev,
> > + irq_handler_t handler,
> > + const char *irq_name)
> > +{
> > + struct device *dev = &pdev->dev;
> > + struct da9150_charger *charger = platform_get_drvdata(pdev);
> > + int irq, ret;
> > +
> > + irq = platform_get_irq_byname(pdev, irq_name);
> > + if (irq < 0) {
> > + dev_err(dev, "Failed to get IRQ CHG_STATUS: %d\n", irq);
> > + return irq;
> > + }
> > +
> > + ret = request_threaded_irq(irq, NULL, handler, IRQF_ONESHOT, irq_name,
> > + charger);
>
> Why don you use devm_* API..?
As mentioned in previous discussions, the order of tidy up is important so
devm_* functions cannot be used here.
>
> > + if (ret)
> > + dev_err(dev, "Failed to request IRQ %d: %d\n", irq, ret);
> > +
> > + return ret;
> > +}
> > +
> > +static void da9150_charger_unregister_irq(struct platform_device *pdev,
> > + const char *irq_name)
> > +{
> > + struct device *dev = &pdev->dev;
> > + struct da9150_charger *charger = platform_get_drvdata(pdev);
> > + int irq;
> > +
> > + irq = platform_get_irq_byname(pdev, irq_name);
> > + if (irq < 0) {
> > + dev_err(dev, "Failed to get IRQ CHG_STATUS: %d\n", irq);
> > + return;
> > + }
> > +
> > + free_irq(irq, charger);
> > +}
> > +
> > +static int da9150_charger_probe(struct platform_device *pdev)
> > +{
> > + struct device *dev = &pdev->dev;
> > + struct da9150 *da9150 = dev_get_drvdata(dev->parent);
> > + struct da9150_charger *charger;
> > + struct power_supply *usb, *battery;
> > + u8 reg;
> > + int ret;
> > +
> > + charger = devm_kzalloc(dev, sizeof(struct da9150_charger), GFP_KERNEL);
> > + if (charger == NULL)
> > + return -ENOMEM;
>
> sizeof(struct da9150_charger) can be replaced with sizeof(*charger)...
>
> *!* operator can be used in comparison with NULL...
>
Yes, but functionally no different. Can maybe change this around later, but
would like to avoid changing current patch set right now.
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