the part array is declared as part[2], so trying to index [2] isn't going to work

--- a/src/mtd.c
+++ b/src/mtd.c
@@ -786,7 +786,7 @@
 		mp->ecc = 1;
 	}
 
-	if (md->part[1].fd >= 0 && md->part[2].fd >=0)
+	if (md->part[1].fd >= 0)
 		md->flags |= F_MULTICHIP;
 
 	/* if a second partition has been opened, verify that are compatible */