diff --git a/drivers/tzlog_dump/tzlog_dump.c b/drivers/tzlog_dump/tzlog_dump.c
index 0cdc0e22df8f..89cc9590923e 100644
--- a/drivers/tzlog_dump/tzlog_dump.c
+++ b/drivers/tzlog_dump/tzlog_dump.c
@@ -290,6 +290,7 @@ static int tzlog_dump_probe(struct platform_device *pdev)
 	}
 
 	tzlog_dump_annotate();
+	memset_io(tzdbg_data, 0, pdata->mem_size);
 err:
 	return err;
 }