eeepc-wmi: return proper error code in eeepc_rfkill_set()

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
index eb4c0ce..d823458 100644
--- a/drivers/platform/x86/eeepc-wmi.c
+++ b/drivers/platform/x86/eeepc-wmi.c
@@ -588,8 +588,14 @@
 {
 	int dev_id = (unsigned long)data;
 	u32 ctrl_param = !blocked;
+	acpi_status status;
 
-	return eeepc_wmi_set_devstate(dev_id, ctrl_param, NULL);
+	status = eeepc_wmi_set_devstate(dev_id, ctrl_param, NULL);
+
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	return 0;
 }
 
 static void eeepc_rfkill_query(struct rfkill *rfkill, void *data)