brucec bf8d02a8b8 dispatch_add_command:
Modify the logic so there's only one exit point instead of two.
Only insert valid (non-NULL) values into the queue.

dispatch_free_command:
Ensure that item is not NULL before removing it from the queue and
dereferencing the pointer.
NULL out free'd pointers to catch any use-after-free bugs.

PR:	bin/146855
Submitted by:	gcooper
MFC after: 3 days
2010-11-21 14:34:25 +00:00
..
2010-11-21 14:34:25 +00:00
2010-08-23 22:24:11 +00:00