Completion of error handling

[elfring]

I have looked at a few source files for your current software. I have noticed that some checks for return codes are missing.

Would you like to add more error handling for return values from functions like the following?

• fopen ⇒ PaUtil_DumpHighSpeedLog
• malloc ⇒ p2p_send_pass
• pthread_create ⇒ start_video