CVS commit: src/sys/kern

[David Young <dyoung%netbsd.org@localhost>]

Module Name:    src
Committed By:   dyoung
Date:           Wed Jun 11 06:26:32 UTC 2008

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

Log Message:
In device_pmf_driver_deregister, postpone deleting a device_t's
reference to the PMF private data until the private data has no
more waiters.  This protects against a NULL dereference.

In device_pmf_lock1(), test a device_t for PMF registration before
dereferencing its PMF private data.


To generate a diff of this commit:
cvs rdiff -r1.154 -r1.155 src/sys/kern/subr_autoconf.c

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