CVS commit: [netbsd-4-0] src/sys/netsmb

["Jeff Rizzo" <riz%netbsd.org@localhost>]

Module Name:    src
Committed By:   riz
Date:           Sat May 19 17:07:50 UTC 2012

Modified Files:
        src/sys/netsmb [netbsd-4-0]: subr_mchain.c

Log Message:
Pull up following revision(s) (requested by nakayama in ticket #1445):
        sys/netsmb/subr_mchain.c: revision 1.21
Since "len" has changed to (unsinged) size_t, the while loop
condition (len > 0) became less able to detect its underflow.
So check the subtrahend to avoid the underflow.
Should fix PR kern/44092.


To generate a diff of this commit:
cvs rdiff -u -r1.13.28.1 -r1.13.28.2 src/sys/netsmb/subr_mchain.c

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