diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c
index a7084c50ad65ff2d6ba24bc31e6da60000c5908c..7225d9312af8c9a2fe60877d6db52416ba8b68fd 100644
--- a/drivers/mmc/host/rtsx_usb_sdmmc.c
+++ b/drivers/mmc/host/rtsx_usb_sdmmc.c
@@ -654,12 +654,11 @@ static u8 sd_search_final_phase(struct rtsx_usb_sdmmc *host, u32 phase_map)
 
 static void sd_wait_data_idle(struct rtsx_usb_sdmmc *host)
 {
-	int err, i;
+	int i;
 	u8 val = 0;
 
 	for (i = 0; i < 100; i++) {
-		err = rtsx_usb_ep0_read_register(host->ucr,
-				SD_DATA_STATE, &val);
+		rtsx_usb_ep0_read_register(host->ucr, SD_DATA_STATE, &val);
 		if (val & SD_DATA_IDLE)
 			return;