WMI: return error if wmi_create_device() fails

The break resets the retval to 0 but we want to return an error code.
This was introduced in c64eefd4 "WMI: embed struct device directly
into wmi_block"
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>

drivers/platform/x86/wmi.c

@@ -820,7 +820,7 @@ static acpi_status parse_wdg(acpi_handle handle)
 			retval = wmi_create_device(&gblock[i], wblock, handle);
 			if (retval) {
 				wmi_free_devices();
-				break;
+				goto out_free_pointer;
 			}
 		}