extcon: max77693: Use devm_extcon_dev_allocate for extcon_dev

This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>

drivers/extcon/extcon-max77693.c

@@ -1175,23 +1175,22 @@ static int max77693_muic_probe(struct platform_device *pdev)
 	}
 
 	/* Initialize extcon device */
-	info->edev = devm_kzalloc(&pdev->dev, sizeof(struct extcon_dev),
-				  GFP_KERNEL);
-	if (!info->edev) {
+	info->edev = devm_extcon_dev_allocate(&pdev->dev,
+					      max77693_extcon_cable);
+	if (IS_ERR(info->edev)) {
 		dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
 		ret = -ENOMEM;
 		goto err_irq;
 	}
 	info->edev->name = DEV_NAME;
 	info->edev->dev.parent = &pdev->dev;
-	info->edev->supported_cable = max77693_extcon_cable;
+
 	ret = devm_extcon_dev_register(&pdev->dev, info->edev);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register extcon device\n");
 		goto err_irq;
 	}
 
-
 	/* Initialize MUIC register by using platform data or default data */
 	if (pdata && pdata->muic_data) {
 		init_data = pdata->muic_data->init_data;