batman-adv: Ensure that we really have route changes in update_route
The debug output of update_route has tests for "route deleted" and "route added". All other situations are handled as "route changed". This is not true because neigh_node and curr_router could be both NULL. The function is not called in this situation, but the code might be interpreted wrong when reading it without this test. Signed-off-by: Sven Eckelmann <sven@narfation.org>
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@ -108,7 +108,7 @@ static void update_route(struct bat_priv *bat_priv, struct orig_node *orig_node,
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tt_buff, tt_buff_len);
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/* route changed */
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} else {
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} else if (neigh_node && curr_router) {
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bat_dbg(DBG_ROUTES, bat_priv,
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"Changing route towards: %pM "
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"(now via %pM - was via %pM)\n",
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