staging: xgifb: refactor XGI_GetLVDSData()

Refactor XGI_GetLVDSData() to avoid nesting and redundant ifs.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/xgifb/vb_setmode.c

@@ -1380,37 +1380,35 @@ static void XGI_GetLVDSData(unsigned short ModeNo, unsigned short ModeIdIndex,
 		unsigned short RefreshRateTableIndex,
 		struct vb_device_info *pVBInfo)
 {
-	struct SiS_LVDSData const *LCDPtr = NULL;
+	struct SiS_LVDSData const *LCDPtr;
 
-	if (pVBInfo->VBInfo & (SetCRT2ToLCD | XGI_SetCRT2ToLCDA)) {
-		LCDPtr = XGI_GetLcdPtr(XGI_EPLLCDDataPtr, ModeNo, ModeIdIndex,
-				       RefreshRateTableIndex, pVBInfo);
-		pVBInfo->VGAHT = LCDPtr->VGAHT;
-		pVBInfo->VGAVT = LCDPtr->VGAVT;
-		pVBInfo->HT = LCDPtr->LCDHT;
-		pVBInfo->VT = LCDPtr->LCDVT;
-	}
+	if (!(pVBInfo->VBInfo & (SetCRT2ToLCD | XGI_SetCRT2ToLCDA)))
+		return;
 
-	if (pVBInfo->VBInfo & (SetCRT2ToLCD | XGI_SetCRT2ToLCDA)) {
-		if (!(pVBInfo->LCDInfo & (SetLCDtoNonExpanding
-				| EnableScalingLCD))) {
-			if ((pVBInfo->LCDResInfo == Panel_1024x768) ||
-			    (pVBInfo->LCDResInfo == Panel_1024x768x75)) {
-				pVBInfo->HDE = 1024;
-				pVBInfo->VDE = 768;
-			} else if ((pVBInfo->LCDResInfo == Panel_1280x1024) ||
-				   (pVBInfo->LCDResInfo ==
-					Panel_1280x1024x75)) {
-				pVBInfo->HDE = 1280;
-				pVBInfo->VDE = 1024;
-			} else if (pVBInfo->LCDResInfo == Panel_1400x1050) {
-				pVBInfo->HDE = 1400;
-				pVBInfo->VDE = 1050;
-			} else {
-				pVBInfo->HDE = 1600;
-				pVBInfo->VDE = 1200;
-			}
-		}
+	LCDPtr = XGI_GetLcdPtr(XGI_EPLLCDDataPtr, ModeNo, ModeIdIndex,
+			       RefreshRateTableIndex, pVBInfo);
+	pVBInfo->VGAHT	= LCDPtr->VGAHT;
+	pVBInfo->VGAVT	= LCDPtr->VGAVT;
+	pVBInfo->HT	= LCDPtr->LCDHT;
+	pVBInfo->VT	= LCDPtr->LCDVT;
+
+	if (pVBInfo->LCDInfo & (SetLCDtoNonExpanding | EnableScalingLCD))
+		return;
+
+	if ((pVBInfo->LCDResInfo == Panel_1024x768) ||
+	    (pVBInfo->LCDResInfo == Panel_1024x768x75)) {
+		pVBInfo->HDE = 1024;
+		pVBInfo->VDE = 768;
+	} else if ((pVBInfo->LCDResInfo == Panel_1280x1024) ||
+		   (pVBInfo->LCDResInfo == Panel_1280x1024x75)) {
+		pVBInfo->HDE = 1280;
+		pVBInfo->VDE = 1024;
+	} else if (pVBInfo->LCDResInfo == Panel_1400x1050) {
+		pVBInfo->HDE = 1400;
+		pVBInfo->VDE = 1050;
+	} else {
+		pVBInfo->HDE = 1600;
+		pVBInfo->VDE = 1200;
 	}
 }