[asterisk-commits] tilghman: branch 1.4 r56685 - in /branches/1.4: ./ main/channel.c

[asterisk-commits at lists.digium.com]

Author: tilghman
Date: Sun Feb 25 08:46:41 2007
New Revision: 56685

URL: http://svn.digium.com/view/asterisk?view=rev&rev=56685
Log:
Merged revisions 56684 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/branches/1.2

........
r56684 | tilghman | 2007-02-25 08:38:03 -0600 (Sun, 25 Feb 2007) | 3 lines

Issue 9130 - If prev is the last item on the channel list, then evaluating
additional conditions (e.g. name prefix) will cause a NULL dereference.

........

Modified:
    branches/1.4/   (props changed)
    branches/1.4/main/channel.c

Propchange: branches/1.4/
------------------------------------------------------------------------------
Binary property 'branch-1.2-merged' - no diff available.

Modified: branches/1.4/main/channel.c
URL: http://svn.digium.com/view/asterisk/branches/1.4/main/channel.c?view=diff&rev=56685&r1=56684&r2=56685
==============================================================================
--- branches/1.4/main/channel.c (original)
+++ branches/1.4/main/channel.c Sun Feb 25 08:46:41 2007
@@ -997,7 +997,11 @@
 				if (c != prev)	/* not this one */
 					continue;
 				/* found, prepare to return c->next */
-				c = AST_LIST_NEXT(c, chan_list);
+				if ((c = AST_LIST_NEXT(c, chan_list)) == NULL) break;
+				/* If prev was the last item on the channel list, then we just
+				 * want to return NULL, instead of trying to deref NULL in the
+				 * next section.
+				 */
 			}
 			if (name) { /* want match by name */
 				if ((!namelen && strcasecmp(c->name, name)) ||