+ * find_valid_gpt() - finds a valid GPT header and PTEs
+ *
+ * gpt is a GPT header ptr, filled on return.
+ * ptes is a PTEs ptr, filled on return.
+ *
+ * Description: returns 1 if found a valid gpt, 0 on error.
+ * If valid, returns pointers to PTEs.
+ */
+static int find_valid_gpt(struct blk_desc *dev_desc, gpt_header *gpt_head,
+ gpt_entry **pgpt_pte)
+{
+ int r;
+
+ r = is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA, gpt_head,
+ pgpt_pte);
+
+ if (r != 1) {
+ if (r != 2)
+ printf("%s: *** ERROR: Invalid GPT ***\n", __func__);
+
+ if (is_gpt_valid(dev_desc, (dev_desc->lba - 1), gpt_head,
+ pgpt_pte) != 1) {
+ printf("%s: *** ERROR: Invalid Backup GPT ***\n",
+ __func__);
+ return 0;
+ }
+ if (r != 2)
+ printf("%s: *** Using Backup GPT ***\n",
+ __func__);
+ }
+ return 1;
+}
+
+/**