From 61f0d861fc6924fa673ecf1128a911d49cb10dc8 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Wed, 11 Mar 2015 14:02:16 -0700 Subject: [PATCH] fib_trie: Fix uninitialized variable warning The 0-day kernel test infrastructure reported a use of uninitialized variable warning for local_table due to the fact that the local and main allocations had been swapped from the original setup. This change corrects that by making it so that we free the main table if the local table allocation fails. Fixes: 0ddcf43d5 ("ipv4: FIB Local/MAIN table collapse") Signed-off-by: Alexander Duyck Signed-off-by: David S. Miller --- net/ipv4/fib_frontend.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index a0b69ae8be1c..c1caf9ded280 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -54,11 +54,11 @@ static int __net_init fib4_rules_init(struct net *net) main_table = fib_trie_table(RT_TABLE_MAIN, NULL); if (main_table == NULL) - goto fail; + return -ENOMEM; local_table = fib_trie_table(RT_TABLE_LOCAL, main_table); if (local_table == NULL) - return -ENOMEM; + goto fail; hlist_add_head_rcu(&local_table->tb_hlist, &net->ipv4.fib_table_hash[TABLE_LOCAL_INDEX]); @@ -67,7 +67,7 @@ static int __net_init fib4_rules_init(struct net *net) return 0; fail: - fib_free_table(local_table); + fib_free_table(main_table); return -ENOMEM; } #else -- 2.39.2