Index: branches/fat32-0.9/src/ifscache.c
===================================================================
--- branches/fat32-0.9/src/ifscache.c	(revision 82)
+++ branches/fat32-0.9/src/ifscache.c	(revision 83)
@@ -266,9 +266,11 @@
 
 
-#define Cluster2Sector( ulCluster ) (( ULONG )( pVolInfo->ulStartOfData + \
- (( ULONG )( ulCluster ) - 2) * pVolInfo->BootSect.bpb.SectorsPerCluster ))
-
-#define Sector2Cluster( ulSector ) (( ULONG )((( ULONG )( ulSector ) - pVolInfo->ulStartOfData ) / \
- pVolInfo->BootSect.bpb.SectorsPerCluster + 2 ))
+#define Cluster2Sector( pVolInfo, ulCluster ) \
+ (( ULONG )(( pVolInfo )->ulStartOfData + \
+ (( ULONG )( ulCluster ) - 2) * ( pVolInfo )->BootSect.bpb.SectorsPerCluster ))
+
+#define Sector2Cluster( pVolInfo, ulSector ) \
+ (( ULONG )((( ULONG )( ulSector ) - ( pVolInfo )->ulStartOfData ) / \
+ ( pVolInfo )->BootSect.bpb.SectorsPerCluster + 2 ))
 
 /******************************************************************
@@ -341,6 +343,6 @@
 if( ulSector>= pVolInfo->ulStartOfData )
 {
- ULONG ulStartCluster = Sector2Cluster( ulSector );
- ULONG ulEndCluster = Sector2Cluster( ulSector + usSectors - 1 );
+ ULONG ulStartCluster = Sector2Cluster( pVolInfo, ulSector );
+ ULONG ulEndCluster = Sector2Cluster( pVolInfo, ulSector + usSectors - 1 );
 ULONG ulNextCluster = 0;
 ULONG ulCluster;
@@ -356,5 +358,5 @@
 {
 usSectors = ( ulStartCluster != ulCluster ) ?
- ( min(( USHORT )( Cluster2Sector( ulCluster ) - ulSector ), usSectors )) : 0;
+ ( min(( USHORT )( Cluster2Sector( pVolInfo, ulCluster ) - ulSector ), usSectors )) : 0;
 }
 }
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