If in nr_link_failed the neighbour list is non-empty but the node list
is empty we'll end dereferencing a in a NULL pointer.
This fixes coverity 362.
Signed-off-by: Ralf Baechle <[EMAIL PROTECTED]>
net/netrom/nr_route.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
Index: linux-net/net/netrom/nr_route.c
===================================================================
--- linux-net.orig/net/netrom/nr_route.c 2006-06-23 22:40:27.000000000
+0100
+++ linux-net/net/netrom/nr_route.c 2006-06-23 22:42:52.000000000 +0100
@@ -725,15 +725,17 @@ void nr_link_failed(ax25_cb *ax25, int r
struct nr_node *nr_node = NULL;
spin_lock_bh(&nr_neigh_list_lock);
- nr_neigh_for_each(s, node, &nr_neigh_list)
+ nr_neigh_for_each(s, node, &nr_neigh_list) {
if (s->ax25 == ax25) {
nr_neigh_hold(s);
nr_neigh = s;
break;
}
+ }
spin_unlock_bh(&nr_neigh_list_lock);
- if (nr_neigh == NULL) return;
+ if (nr_neigh == NULL)
+ return;
nr_neigh->ax25 = NULL;
ax25_cb_put(ax25);
@@ -743,11 +745,13 @@ void nr_link_failed(ax25_cb *ax25, int r
return;
}
spin_lock_bh(&nr_node_list_lock);
- nr_node_for_each(nr_node, node, &nr_node_list)
+ nr_node_for_each(nr_node, node, &nr_node_list) {
nr_node_lock(nr_node);
- if (nr_node->which < nr_node->count &&
nr_node->routes[nr_node->which].neighbour == nr_neigh)
+ if (nr_node->which < nr_node->count &&
+ nr_node->routes[nr_node->which].neighbour == nr_neigh)
nr_node->which++;
nr_node_unlock(nr_node);
+ }
spin_unlock_bh(&nr_node_list_lock);
nr_neigh_put(nr_neigh);
}
-
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