diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 20df7fe..b53c5f6 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1799,6 +1799,7 @@
  **/
 void scsi_scan_host(struct Scsi_Host *shost)
 {
+	struct task_struct *p;
 	struct async_scan_data *data;
 
 	if (strncmp(scsi_scan_type, "none", 4) == 0)
@@ -1810,7 +1811,9 @@
 		return;
 	}
 
-	kthread_run(do_scan_async, data, "scsi_scan_%d", shost->host_no);
+	p = kthread_run(do_scan_async, data, "scsi_scan_%d", shost->host_no);
+	if (unlikely(IS_ERR(p)))
+		do_scan_async(data);
 }
 EXPORT_SYMBOL(scsi_scan_host);