diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c
index 2de66b062f0d733be6e97751312d9f576c198236..71fdda29594b7c3595d786c1572012d09b4df8af 100644
--- a/drivers/mtd/maps/plat-ram.c
+++ b/drivers/mtd/maps/plat-ram.c
@@ -199,7 +199,7 @@ static int platram_probe(struct platform_device *pdev)
 	 * supplied by the platform_data struct */
 
 	if (pdata->map_probes) {
-		const char **map_probes = pdata->map_probes;
+		const char * const *map_probes = pdata->map_probes;
 
 		for ( ; !info->mtd && *map_probes; map_probes++)
 			info->mtd = do_map_probe(*map_probes , &info->map);
diff --git a/include/linux/mtd/plat-ram.h b/include/linux/mtd/plat-ram.h
index e07890aff1cf9523cb0fe4d07b0c06353da046c9..44212d65aa9760d3da44aec47fc7139e021a704d 100644
--- a/include/linux/mtd/plat-ram.h
+++ b/include/linux/mtd/plat-ram.h
@@ -20,8 +20,8 @@
 
 struct platdata_mtd_ram {
 	const char		*mapname;
-	const char		**map_probes;
-	const char		**probes;
+	const char * const      *map_probes;
+	const char * const      *probes;
 	struct mtd_partition	*partitions;
 	int			 nr_partitions;
 	int			 bankwidth;