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.opensou...@diasemi.com>
---

(...)

+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..?

+       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...

(...)

--
Thanks and Regards,
Varka Bhadram.

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