ACPI: clean up white space in a few places for consistency

This cleans up a few line spaces so that it is consistent with the rest
of the file. There are a few places where a space was added before a
return and two spots where a double line space was made into one line
space.

Signed-off-by: Ian Cowan <ian@linux.cowan.aero>
[ rjw: Subject adjustment ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/ac.c

@@ -32,7 +32,6 @@ MODULE_AUTHOR("Paul Diefenbaugh");
 MODULE_DESCRIPTION("ACPI AC Adapter Driver");
 MODULE_LICENSE("GPL");
 
-
 static int acpi_ac_add(struct acpi_device *device);
 static int acpi_ac_remove(struct acpi_device *device);
 static void acpi_ac_notify(struct acpi_device *device, u32 event);
@@ -125,6 +124,7 @@ static int get_ac_property(struct power_supply *psy,
 	default:
 		return -EINVAL;
 	}
+
 	return 0;
 }
 
@@ -286,6 +286,7 @@ static int acpi_ac_resume(struct device *dev)
 		return 0;
 	if (old_state != ac->state)
 		kobject_uevent(&ac->charger->dev.kobj, KOBJ_CHANGE);
+
 	return 0;
 }
 #else
@@ -296,7 +297,6 @@ static int acpi_ac_remove(struct acpi_device *device)
 {
 	struct acpi_ac *ac = NULL;
 
-
 	if (!device || !acpi_driver_data(device))
 		return -EINVAL;