drivers: mmc: check mmc_reset_to_idle return

Signed-off-by: Yann Gautier <yann.gautier@st.com>

drivers/mmc/mmc.c

@@ -386,7 +386,10 @@ static int mmc_send_op_cond(void)
 	int ret, n;
 	unsigned int resp_data[4];
 
-	mmc_reset_to_idle();
+	ret = mmc_reset_to_idle();
+	if (ret != 0) {
+		return ret;
+	};
 
 	for (n = 0; n < SEND_OP_COND_MAX_RETRIES; n++) {
 		ret = mmc_send_cmd(MMC_CMD(1), OCR_SECTOR_MODE |
@@ -416,7 +419,10 @@ static int mmc_enumerate(unsigned int clk, unsigned int bus_width)
 
 	ops->init();
 
-	mmc_reset_to_idle();
+	ret = mmc_reset_to_idle();
+	if (ret != 0) {
+		return ret;
+	};
 
 	if (mmc_dev_info->mmc_dev_type == MMC_IS_EMMC) {
 		ret = mmc_send_op_cond();