diff --git a/drivers/st/clk/stm32mp1_clk.c b/drivers/st/clk/stm32mp1_clk.c
index 564bd87..6ada96a 100644
--- a/drivers/st/clk/stm32mp1_clk.c
+++ b/drivers/st/clk/stm32mp1_clk.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018-2020, STMicroelectronics - All Rights Reserved
+ * Copyright (C) 2018-2021, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
  */
@@ -1737,7 +1737,7 @@
 	void *fdt;
 
 	if (fdt_get_address(&fdt) == 0) {
-		return false;
+		return -FDT_ERR_NOTFOUND;
 	}
 
 	/* Check status field to disable security */