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datapath: Don't dereference potentially NULL vport in patch ports.

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When changing patch ports we need to update any peers pointing to us.
When destroying the port, this means pointing them to a NULL port.
However, the new namespaces code attempted to dereference this port
in order to get the namespace.  The net is already passed in, so we
can just use that instead.

Bug #9477

Reported-by: Michael Hu <mhu@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Jesse Gross 2012-01-31 14:22:25 -08:00
parent 5442edb9e0
commit c240693fc4
1 changed files with 1 additions and 1 deletions
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datapath/vport-patch.c
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@ -233,7 +233,7 @@ error:
static void update_peers(struct net *net, const char *name, struct vport *vport) static void update_peers(struct net *net, const char *name, struct vport *vport)
{ {
struct hlist_head *bucket = hash_bucket(ovs_dp_get_net(vport->dp), name); struct hlist_head *bucket = hash_bucket(net, name);
struct patch_vport *peer_vport; struct patch_vport *peer_vport;
struct hlist_node *node; struct hlist_node *node;