Staging: xgifb: Refactor XGI_GetVBType().

Refactor XGI_GetVBType() to reduce indentation and fix style warnings.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/xgifb/vb_setmode.c

@@ -2559,42 +2559,45 @@ void XGI_GetVBType(struct vb_device_info *pVBInfo)
 {
 	unsigned short flag, tempbx, tempah;
 
-	if (pVBInfo->IF_DEF_LVDS == 0) {
+	if (pVBInfo->IF_DEF_LVDS != 0)
+		return;
+
 	tempbx = VB_SIS302B;
 	flag = xgifb_reg_get(pVBInfo->Part4Port, 0x00);
-		if (flag != 0x02) {
+	if (flag == 0x02)
+		goto finish;
+
 	tempbx = VB_SIS301;
 	flag = xgifb_reg_get(pVBInfo->Part4Port, 0x01);
-			if (flag >= 0xB0) {
+	if (flag < 0xB0)
+		goto finish;
+
 	tempbx = VB_SIS301B;
-				if (flag >= 0xC0) {
+	if (flag < 0xC0)
+		goto bigger_than_0xB0;
+
 	tempbx = VB_XGI301C;
-					if (flag >= 0xD0) {
+	if (flag < 0xD0)
+		goto bigger_than_0xB0;
+
 	tempbx = VB_SIS301LV;
-						if (flag >= 0xE0) {
+	if (flag < 0xE0)
+		goto bigger_than_0xB0;
+
 	tempbx = VB_SIS302LV;
-							tempah = xgifb_reg_get(
-							    pVBInfo->Part4Port,
-							    0x39);
+	tempah = xgifb_reg_get(pVBInfo->Part4Port, 0x39);
 	if (tempah != 0xFF)
-								tempbx =
-								    VB_XGI301C;
-						}
-					}
-				}
+		tempbx = VB_XGI301C;
 
+bigger_than_0xB0:
 	if (tempbx & (VB_SIS301B | VB_SIS302B)) {
-					flag = xgifb_reg_get(
-							pVBInfo->Part4Port,
-							0x23);
-
+		flag = xgifb_reg_get(pVBInfo->Part4Port, 0x23);
 		if (!(flag & 0x02))
 			tempbx = tempbx | VB_NoLCD;
 	}
-			}
-		}
+
+finish:
 	pVBInfo->VBType = tempbx;
-	}
 }
 
 static void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,