diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 5a71f6678fd3acccb952e79b26a7718113becba5..dc0dbd64a2a78259a516528bff9e00f3e5ba8b81 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -675,11 +675,11 @@ static u8 sd_search_final_phase(struct realtek_pci_sdmmc *host, u32 phase_map)
 
 static void sd_wait_data_idle(struct realtek_pci_sdmmc *host)
 {
-	int err, i;
+	int i;
 	u8 val = 0;
 
 	for (i = 0; i < 100; i++) {
-		err = rtsx_pci_read_register(host->pcr, SD_DATA_STATE, &val);
+		rtsx_pci_read_register(host->pcr, SD_DATA_STATE, &val);
 		if (val & SD_DATA_IDLE)
 			return;