diff --git a/drivers/mtd/nand/spi_nand.c b/drivers/mtd/nand/spi_nand.c
index d01a119..e7f71c8 100644
--- a/drivers/mtd/nand/spi_nand.c
+++ b/drivers/mtd/nand/spi_nand.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019,  STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2019-2021,  STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -286,6 +286,10 @@
 		return -EINVAL;
 	}
 
+	assert((spinand_dev.nand_dev->page_size != 0U) &&
+	       (spinand_dev.nand_dev->block_size != 0U) &&
+	       (spinand_dev.nand_dev->size != 0U));
+
 	ret = spi_nand_reset();
 	if (ret != 0) {
 		return ret;