Fix SEGV in dlist.c - patch by Dr. Hans Reinecke

2 files changed, 5 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 8d97dda..7420c4d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,7 @@
 
+03/19/2004 - Dr. Hannes Reinecke <hare@suse.de>
+		* Fixed SEGV in dlist.c
+
 03/15/2004 - Ananth Mavinakayanahalli <ananth@in.ibm.com>
 		* Updated docs/libsysfs.txt for release 1.1.0
 
diff --git a/lib/dlist.c b/lib/dlist.c
index c6b104c..a324624 100644
--- a/lib/dlist.c
+++ b/lib/dlist.c
@@ -73,14 +73,14 @@ inline void *_dlist_mark_move(Dlist *list,int direction)
 {
   if(direction)
     {
-      if( list->marker->next!=NULL)
+      if( list->marker && list->marker->next!=NULL)
 	list->marker=list->marker->next;
       else
 	return(NULL);
     }
   else
     {
-      if( list->marker->prev!=NULL)
+      if( list->marker && list->marker->prev!=NULL)
 	list->marker=list->marker->prev;
       else
 	return(NULL);