diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 87b562e49a435ffedac0f71b4652b669611e9a0e..c9687c8b23478138fe5824be4a7bf1737a384d88 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -575,6 +575,8 @@ void regmap_debugfs_init(struct regmap *map, const char *name)
 	}
 
 	if (!strcmp(name, "dummy")) {
+		kfree(map->debugfs_name);
+
 		map->debugfs_name = kasprintf(GFP_KERNEL, "dummy%d",
 						dummy_index);
 		name = map->debugfs_name;