diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 674461f..7f21744 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -4779,6 +4779,9 @@
 	struct fw_event_work *fw_event;
 	unsigned long delay;
 
+	if (ioc->bus_type != SAS)
+		return 0;
+
 	/* events turned off due to host reset or driver unloading */
 	if (ioc->fw_events_off)
 		return 0;