CVS commit: src/sys/netinet6

["Ryota Ozaki" <ozaki-r%netbsd.org@localhost>]

Module Name:    src
Committed By:   ozaki-r
Date:           Tue May 29 04:37:58 UTC 2018

Modified Files:
        src/sys/netinet6: mld6.c

Log Message:
Make a refcount decrement and a removal from a list of an item atomic

in6m_refcount of an in6m can be incremented if the in6m is on the list
(if_multiaddrs) in in6_addmulti or mld_input.  So we must avoid such an
increment when we try to destroy an in6m.  To this end we must make
an in6m_refcount decrement and a removal of an in6m from if_multiaddrs
atomic.


To generate a diff of this commit:
cvs rdiff -u -r1.95 -r1.96 src/sys/netinet6/mld6.c

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