Add checking to call to call_fib_entry_notifiers for IPv4 route replace.
Allows a notifier handler to fail the replace.
Signed-off-by: David Ahern <d...@cumulusnetworks.com>
---
net/ipv4/fib_trie.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index d0f70a16f8de..113822aa9ea7 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1219,8 +1219,13 @@ int fib_table_insert(struct net *net, struct fib_table
*tb,
new_fa->tb_id = tb->tb_id;
new_fa->fa_default = -1;
- call_fib_entry_notifiers(net, FIB_EVENT_ENTRY_REPLACE,
- key, plen, new_fa, extack);
+ err = call_fib_entry_notifiers(net,
+ FIB_EVENT_ENTRY_REPLACE,
+ key, plen, new_fa,
+ extack);
+ if (err)
+ goto out_free_new_fa;
+
rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen,
tb->tb_id, &cfg->fc_nlinfo, nlflags);
--
2.11.0
