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

@@ -1380,27 +1380,27 @@ 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)))
+		return;
 
-	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)) {
-		if (!(pVBInfo->LCDInfo & (SetLCDtoNonExpanding
-				| EnableScalingLCD))) {
+	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->LCDResInfo == Panel_1280x1024x75)) {
 		pVBInfo->HDE = 1280;
 		pVBInfo->VDE = 1024;
 	} else if (pVBInfo->LCDResInfo == Panel_1400x1050) {
@@ -1410,8 +1410,6 @@ static void XGI_GetLVDSData(unsigned short ModeNo, unsigned short ModeIdIndex,
 		pVBInfo->HDE = 1600;
 		pVBInfo->VDE = 1200;
 	}
-		}
-	}
 }
 
 static void XGI_ModCRT1Regs(unsigned short ModeNo, unsigned short ModeIdIndex,