-1 return value isn't handled

[ghost]

'MassStorageDevice.CheckSCSICommand' returns -1.
This return value is not handled by caller 'MassStorageDevice.SendSCSICommand_OUT'.

#if MSD_TRACE
                    DBGMSG("Done.");
                    DBGMSG("Check command...");
#endif

                    if (!transfer.success || CheckSCSICommand(statusBuffer, SCSIcommand) != 0)
                    {
                        // TODO: Handle failure/timeout
#if MSD_TRACE
                        DBGMSG("SCSI IN command failed!");
#endif
                    }
#if MSD_TRACE
                    else
                    {
                        DBGMSG("Command OK.");
                        BasicConsole.DelayOutput(1);

at lines 817 - 833