mac80211: ignore peers if security is enabled for this mesh

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index c705b20..bafe255 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -449,6 +449,10 @@
 		mpl_dbg("Mesh plink: missing necessary peer link ie\n");
 		return;
 	}
+	if (elems.rsn_len && !sdata->u.mesh.is_secure) {
+		mpl_dbg("Mesh plink: can't establish link with secure peer\n");
+		return;
+	}
 
 	ftype = mgmt->u.action.u.plink_action.action_code;
 	ie_len = elems.peer_link_len;