Date: Fri, 22 Jan 1999 19:45:23 -0800 (PST) From: Peter Wemm <peter@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: cvs commit: src/sys/kern kern_linker.c Message-ID: <199901230345.TAA04745@freefall.freebsd.org>
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peter 1999/01/22 19:45:23 PST
Modified files:
sys/kern kern_linker.c
Log:
Update userref handling after discussion with submitter of previous
patch. lf can't be dereferenced after the unload attempt, in case it
was freed. Instead, decrement first and back it out if the unload failed.
This should be relatively immune to races caused by the user since the
userref count will be zero for the duration of the actual unloading and
will stop further kldunload attempts.
Submitted by: Ustimenko Semen <semen@iclub.nsu.ru>
Revision Changes Path
1.22 +4 -4 src/sys/kern/kern_linker.c
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