- Fix Portcls release build by putting a variable inside a DBG #define as it is only used in an ASSERT()

svn path=/trunk/; revision=39729

reactos/drivers/wdm/audio/backpln/portcls/filter_wavecyclic.c

@@ -145,8 +145,9 @@ IPortFilterWaveCyclic_fnDeviceIoControl(
     PIO_STACK_LOCATION IoStack;
     ISubdevice *SubDevice = NULL;
     SUBDEVICE_DESCRIPTOR * Descriptor;
-
+#if defined(DBG)
     IPortFilterWaveCyclicImpl * This = (IPortFilterWaveCyclicImpl *)iface;
+#endif
 
     IoStack = IoGetCurrentIrpStackLocation(Irp);
     ASSERT(IoStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_KS_PROPERTY);