Something

@@--- linux-2.6.18/drivers/mtd/redboot.c  2006-10-18 08:08:36.000000000 -0400
@@+++ kernel-2.6.16-squashfs/linux-2.6.16/drivers/mtd/redboot.c   2006-09-16 23:21:13.000000000 -0400
@@ -85,6 +85,10 @@

        numslots = (master->erasesize / sizeof(struct fis_image_desc));
        for (i = 0; i < numslots; i++) {
+               if (buf[i].name[0] == 0xff) {
+                       i = numslots;
+                       break;
+               }
                if (!memcmp(buf[i].name, "FIS directory", 14)) {
                        /* This is apparently the FIS directory entry for the
                         * FIS directory itself.  To discover whether the entries
@@ -155,7 +159,7 @@
                struct fis_list *new_fl, **prev;

                if (buf[i].name[0] == 0xff)
-                       continue;
+                       break;
                if (!redboot_checksum(&buf[i]))
                        break;