CVS commit: src/sys/kern

["Christos Zoulas" <christos%netbsd.org@localhost>]

Module Name:    src
Committed By:   christos
Date:           Fri Sep 23 23:57:06 UTC 2011

Modified Files:
        src/sys/kern: tty_pty.c

Log Message:
Fix various bogus things:
- Don't use TTYHOG - 1, you can use the last byte in the ring buffer.
- Don't put unnecessary if statements around the code. The loop invariant
  is that if you reach the top of the loop, cc == 0.
- Remove cast to (void *).
- Check result of b_to_q and adjust cc.
- Explain what the TTYHOG - 2 code tried to do, and do it right.


To generate a diff of this commit:
cvs rdiff -u -r1.129 -r1.130 src/sys/kern/tty_pty.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.