diff --git a/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_api_88xx.c b/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_api_88xx.c
index edbf6af1c8b7..448b1379d220 100644
--- a/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_api_88xx.c
+++ b/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_api_88xx.c
@@ -3391,8 +3391,10 @@ halmac_cfg_txbf_88xx(struct halmac_adapter *halmac_adapter, u8 userid,
 		switch (bw) {
 		case HALMAC_BW_80:
 			temp42C |= BIT_R_TXBF0_80M;
+			/* fall through */
 		case HALMAC_BW_40:
 			temp42C |= BIT_R_TXBF0_40M;
+			/* fall through */
 		case HALMAC_BW_20:
 			temp42C |= BIT_R_TXBF0_20M;
 			break;