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SUNRPC: Don't call connect() more than once on a TCP socket
[ Upstream commit 89f4249 ] Avoid socket state races due to repeated calls to ->connect() using the same socket. If connect() returns 0 due to the connection having completed, but we are in fact in a closing state, then we may leave the XPRT_CONNECTING flag set on the transport. Reported-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Fixes: 3be232f ("SUNRPC: Prevent immediate close+reconnect") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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