CVS commit: src/sys/kern

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sun Jun 13 09:30:48 UTC 2021

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

Log Message:
autoconf(9): Take kernel lock in config_detach.

config_detach is used in too many places to audit for now -- so
although I'm quite sure it is racy (e.g., with cloning devices and
drvctl: drvctl -d a newly opened fss0 before sc_state has
transitioned from FSS_IDLE), this will mitigate the immediate fallout
until we can properly fix autoconf's notions of device pointers.


To generate a diff of this commit:
cvs rdiff -u -r1.286 -r1.287 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.