diff --git a/drivers/core/regmap.c b/drivers/core/regmap.c
index 4a214ef..a67a237 100644
--- a/drivers/core/regmap.c
+++ b/drivers/core/regmap.c
@@ -310,13 +310,13 @@
 	}
 	range = &map->ranges[range_num];
 
-	ptr = map_physmem(range->start + offset, val_len, MAP_NOCACHE);
-
 	if (offset + val_len > range->size) {
 		debug("%s: offset/size combination invalid\n", __func__);
 		return -ERANGE;
 	}
 
+	ptr = map_physmem(range->start + offset, val_len, MAP_NOCACHE);
+
 	switch (val_len) {
 	case REGMAP_SIZE_8:
 		*((u8 *)valp) = __read_8(ptr, map->endianness);
@@ -419,13 +419,13 @@
 	}
 	range = &map->ranges[range_num];
 
-	ptr = map_physmem(range->start + offset, val_len, MAP_NOCACHE);
-
 	if (offset + val_len > range->size) {
 		debug("%s: offset/size combination invalid\n", __func__);
 		return -ERANGE;
 	}
 
+	ptr = map_physmem(range->start + offset, val_len, MAP_NOCACHE);
+
 	switch (val_len) {
 	case REGMAP_SIZE_8:
 		__write_8(ptr, val, map->endianness);