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Kuniyuki IwashimaandGreg Kroah-Hartman
317c4c68ee
[ Upstream commit07cc7b0b94] Before commitaddf9b90de("net: rtnetlink: use rcu to free rtnl message handlers"), once rtnl_msg_handlers[protocol] was allocated, the following rtnl_register_module() for the same protocol never failed. However, after the commit, rtnl_msg_handler[protocol][msgtype] needs to be allocated in each rtnl_register_module(), so each call could fail. Many callers of rtnl_register_module() do not handle the returned error, and we need to add many error handlings. To handle that easily, let's add wrapper functions for bulk registration of rtnetlink message handlers. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Stable-dep-of:78b7b99183("vxlan: Handle error of rtnl_register_module().") Signed-off-by: Sasha Levin <sashal@kernel.org>