--- zzzz-none-000/linux-3.10.107/arch/ia64/hp/sim/simscsi.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/ia64/hp/sim/simscsi.c	2021-02-04 17:41:59.000000000 +0000
@@ -88,8 +88,8 @@
 	if (strlen(s) > MAX_ROOT_LEN) {
 		printk(KERN_ERR "simscsi_setup: prefix too long---using default %s\n",
 		       simscsi_root);
-	}
-	simscsi_root = s;
+	} else
+		simscsi_root = s;
 	return 1;
 }
 
@@ -368,13 +368,4 @@
 	scsi_host_put(host);
 	return error;
 }
-
-static void __exit
-simscsi_exit(void)
-{
-	scsi_remove_host(host);
-	scsi_host_put(host);
-}
-
-module_init(simscsi_init);
-module_exit(simscsi_exit);
+device_initcall(simscsi_init);