[FASTFAT]

- Don't try to free an uninitialized pointer in VfatSetRenameInformation. CID 1250303
- Actually use the dynamically calculated HashTableSize. CID 1237119/1237120/1237121

svn path=/trunk/; revision=68986

reactos/drivers/filesystems/fastfat/finfo.c

@@ -529,6 +529,7 @@ VfatSetRenameInformation(
         RootFCB = RootFileObject->FsContext;
     }
 
+    RtlInitEmptyUnicodeString(&NewName, NULL, 0);
     ParentFCB = NULL;
 
     if (TargetFileObject == NULL)

reactos/drivers/filesystems/fastfat/fsctl.c

@@ -429,7 +429,6 @@ VfatMount(
     {
         HashTableSize = 65537; // 65536 = 64 * 1024;
     }
-    HashTableSize = FCB_HASH_TABLE_SIZE;
     DPRINT("VFAT: Recognized volume\n");
     Status = IoCreateDevice(VfatGlobalData->DriverObject,
                             ROUND_UP(sizeof (DEVICE_EXTENSION), sizeof(ULONG)) + sizeof(HASHENTRY*) * HashTableSize,

reactos/drivers/filesystems/fastfat/vfat.h

@@ -264,8 +264,6 @@ typedef struct _HASHENTRY
 }
 HASHENTRY;
 
-#define FCB_HASH_TABLE_SIZE 65536
-
 typedef struct DEVICE_EXTENSION *PDEVICE_EXTENSION;
 
 typedef NTSTATUS (*PGET_NEXT_CLUSTER)(PDEVICE_EXTENSION,ULONG,PULONG);