Prevent panic with garbage mbuf.

Submitted by:	 Lenzi, Sergio <lenzi@bsi.com.br>
This commit is contained in:
Brian Somers 1997-06-09 04:13:48 +00:00
parent 927145be97
commit 510cc2e46a
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=26517

View file

@ -70,7 +70,7 @@
* Paul Mackerras (paulus@cs.anu.edu.au).
*/
/* $Id: ppp_tty.c,v 1.17 1997/05/31 10:13:46 peter Exp $ */
/* $Id: ppp_tty.c,v 1.18 1997/06/02 08:19:06 dfr Exp $ */
/* from Id: ppp_tty.c,v 1.3 1995/08/16 01:36:40 paulus Exp */
/* from if_sl.c,v 1.11 84/10/04 12:54:47 rick Exp */
@ -571,7 +571,7 @@ pppfcs(fcs, cp, len)
register u_char *cp;
register int len;
{
while (len--)
while (len-- > 0)
fcs = PPP_FCS(fcs, *cp++);
return (fcs);
}