Date: Sat, 9 Mar 2002 14:06:31 -0800 (PST) From: Alfred Perlstein <alfred@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern sys_pipe.c Message-ID: <200203092206.g29M6VM73422@freefall.freebsd.org>
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alfred 2002/03/09 14:06:31 PST
Modified files:
sys/kern sys_pipe.c
Log:
Don't deref NULL mutex pointer when pipeclose()'ing a pipe that is not
fully instaniated.
Revert the logic in pipeclose so that we don't have the entire function
pretty much under a single if() statement, instead invert the test and
just return if it fails.
Submitted (in different form) by: bde
Don't use pool mutexes for pipes. We can not use pool mutexes
because we will need to grab the select lock while holding a pipe
lock which is not allowed because you may not aquire additional
mutexes when holding a pool mutex.
Instead malloc(9) space for the mutex that is shared between the
pipes.
Revision Changes Path
1.95 +51 -30 src/sys/kern/sys_pipe.c
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