mtd: introduce mtd_get_fact_prot_info interface

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 234e3d2..4b1772f 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -925,7 +925,7 @@
 		switch (mfi->mode) {
 		case MTD_FILE_MODE_OTP_FACTORY:
 			if (mtd->get_fact_prot_info)
-				ret = mtd->get_fact_prot_info(mtd, buf, 4096);
+				ret = mtd_get_fact_prot_info(mtd, buf, 4096);
 			break;
 		case MTD_FILE_MODE_OTP_USER:
 			if (mtd->get_user_prot_info)
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 8a46cd2..6bed8bb 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -175,7 +175,7 @@
 		size_t len)
 {
 	struct mtd_part *part = PART(mtd);
-	return part->master->get_fact_prot_info(part->master, buf, len);
+	return mtd_get_fact_prot_info(part->master, buf, len);
 }
 
 static int part_write(struct mtd_info *mtd, loff_t to, size_t len,