[SCSI] simscsi: Free scsi host on error

If scsi_add_host returned an error, the host would never be freed.
We need to call scsi_host_put() if an error happens.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c
index e62694f..a43e1e1 100644
--- a/arch/ia64/hp/sim/simscsi.c
+++ b/arch/ia64/hp/sim/simscsi.c
@@ -373,8 +373,13 @@
 		return -ENOMEM;
 
 	error = scsi_add_host(host, NULL);
-	if (!error)
-		scsi_scan_host(host);
+	if (error)
+		goto free_host;
+	scsi_scan_host(host);
+	return 0;
+
+ free_host:
+	scsi_host_put(host);
 	return error;
 }