staging: vt6655: s_vGenerateTxParameter removed nested pvRrvTime NULL check

Just do single NULL check on pvRrvTime and return.

If pvRrvTime is NULL none of the if statements are valid.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/rxtx.c

@@ -1084,71 +1084,58 @@ s_vGenerateTxParameter(
 	if (pDevice->bLongHeader)
 		cbMACHdLen = WLAN_HDR_ADDR3_LEN + 6;
 
+	if (!pvRrvTime)
+		return;
+
 	if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
 		if (pvRTS != NULL) { //RTS_need
-			//Fill RsvTime
-			if (pvRrvTime) {
-				struct vnt_rrv_time_rts *buf = pvRrvTime;
-
-				buf->rts_rrv_time_aa = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
-				buf->rts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 1, byPktType, cbFrameSize, wCurrentRate);
-				buf->rts_rrv_time_bb = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
-				buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
-				buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
-			}
-			//Fill RTS
+			/* Fill RsvTime */
+			struct vnt_rrv_time_rts *buf = pvRrvTime;
+
+			buf->rts_rrv_time_aa = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
+			buf->rts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 1, byPktType, cbFrameSize, wCurrentRate);
+			buf->rts_rrv_time_bb = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
+			buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
+			buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
+
 			s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
 		} else {//RTS_needless, PCF mode
+			struct vnt_rrv_time_cts *buf = pvRrvTime;
 
-			//Fill RsvTime
-			if (pvRrvTime) {
-				struct vnt_rrv_time_cts *buf = pvRrvTime;
-
-				buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
-				buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
-				buf->cts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 3, byPktType, cbFrameSize, wCurrentRate);
-			}
+			buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
+			buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
+			buf->cts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 3, byPktType, cbFrameSize, wCurrentRate);
 
 			//Fill CTS
 			s_vFillCTSHead(pDevice, uDMAIdx, byPktType, pvCTS, cbFrameSize, bNeedACK, bDisCRC, wCurrentRate, byFBOption);
 		}
 	} else if (byPktType == PK_TYPE_11A) {
 		if (pvRTS != NULL) {//RTS_need, non PCF mode
-			//Fill RsvTime
-			if (pvRrvTime) {
-				struct vnt_rrv_time_ab *buf = pvRrvTime;
+			struct vnt_rrv_time_ab *buf = pvRrvTime;
+
+			buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
+			buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
 
-				buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
-				buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
-			}
 			//Fill RTS
 			s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
 		} else if (pvRTS == NULL) {//RTS_needless, non PCF mode
-			//Fill RsvTime
-			if (pvRrvTime) {
-				struct vnt_rrv_time_ab *buf = pvRrvTime;
+			struct vnt_rrv_time_ab *buf = pvRrvTime;
 
-				buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A, cbFrameSize, wCurrentRate, bNeedACK);
-			}
+			buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A, cbFrameSize, wCurrentRate, bNeedACK);
 		}
 	} else if (byPktType == PK_TYPE_11B) {
 		if ((pvRTS != NULL)) {//RTS_need, non PCF mode
-			//Fill RsvTime
-			if (pvRrvTime) {
-				struct vnt_rrv_time_ab *buf = pvRrvTime;
+			struct vnt_rrv_time_ab *buf = pvRrvTime;
+
+			buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
+			buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
 
-				buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
-				buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
-			}
 			//Fill RTS
 			s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
 		} else { //RTS_needless, non PCF mode
-			//Fill RsvTime
-			if (pvRrvTime) {
-				struct vnt_rrv_time_ab *buf = pvRrvTime;
+			struct vnt_rrv_time_ab *buf = pvRrvTime;
 
-				buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
-			}
+			buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
 		}
 	}
 }