- Improve comments about locking of the "struct fifoinfo" which is a bit   unclear. - Fix a memory leak [0]
- Improve comments about locking of the "struct fifoinfo" which is a bit
  unclear.
- Fix a memory leak [0]

[0] Diagnosed by:	Dorr H. Clark <dclark at engr dot scu dot edu>
MFC:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase