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selftests: mptcp: connect: fix maybe-uninitialize warn

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This warning can be seen with GCC 15.2:

  mptcp_connect.c: In function ‘main_loop’:
  mptcp_connect.c:1422:37: warning: ‘peer’ may be used uninitialized [-Wmaybe-uninitialized]
   1422 |                 if (connect(fd, peer->ai_addr, peer->ai_addrlen))
        |                                 ~~~~^~~~~~~~~
  mptcp_connect.c:1377:26: note: ‘peer’ was declared here
   1377 |         struct addrinfo *peer;
        |                          ^~~~

This variable is set in sock_connect_mptcp() in some conditions. If not,
this helper returns an error, and the program stops. So this is a false
positive, but better removing it by initialising peer to NULL.

Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260205-net-mptcp-misc-fixes-6-19-rc8-v2-4-c2720ce75c34@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Matthieu Baerts (NGI0) 2026-02-05 18:34:24 +01:00 committed by Jakub Kicinski
parent 136f1e168f
commit 53e5533691
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/net/mptcp/mptcp_connect.c
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@ -1296,8 +1296,8 @@ void xdisconnect(int fd)
int main_loop(void)
{
struct addrinfo *peer = NULL;
int fd = 0, ret, fd_in = 0;
struct addrinfo *peer;
struct wstate winfo;
if (cfg_input && cfg_sockopt_types.mptfo) {