diff --git a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
index c5b8841b23c..e4199dbaa59 100644
--- a/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
+++ b/arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
@@ -560,7 +560,7 @@ static int init_device(struct stm32prog_data *data,
 #ifdef CONFIG_MMC
 	case STM32PROG_MMC:
 		mmc = find_mmc_device(dev->dev_id);
-		if (mmc_init(mmc)) {
+		if (!mmc || mmc_init(mmc)) {
 			stm32prog_err("mmc device %d not found", dev->dev_id);
 			return -ENODEV;
 		}