rtc: s5m: switch to devm_device_init_wakeup

To release memory allocated by device_init_wakeup(true), drivers have
to call device_init_wakeup(false) in error paths and unbind.

Switch to the new devres managed version devm_device_init_wakeup() to
plug this memleak.

Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: André Draszik <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexandre Belloni <[email protected]>

Author: andred

drivers/rtc/rtc-s5m.c

@@ -779,7 +779,11 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 			return dev_err_probe(&pdev->dev, ret,
 					     "Failed to request alarm IRQ %d\n",
 					     info->irq);
-		device_init_wakeup(&pdev->dev, true);
+
+		ret = devm_device_init_wakeup(&pdev->dev);
+		if (ret < 0)
+			return dev_err_probe(&pdev->dev, ret,
+					     "Failed to init wakeup\n");
 	}
 
 	if (of_device_is_system_power_controller(pdev->dev.parent->of_node) &&