[PATCH net 2/4] selftests: mptcp: fix incorrect fd checks in main_loop

From: Matthieu Baerts (NGI0)
Date: Fri Mar 28 2025 - 10:31:59 EST


From: Cong Liu <liucong2@xxxxxxxxxx>

Fix a bug where the code was checking the wrong file descriptors
when opening the input files. The code was checking 'fd' instead
of 'fd_in', which could lead to incorrect error handling.

Fixes: 05be5e273c84 ("selftests: mptcp: add disconnect tests")
Cc: stable@xxxxxxxxxxxxxxx
Fixes: ca7ae8916043 ("selftests: mptcp: mptfo Initiator/Listener")
Co-developed-by: Geliang Tang <geliang@xxxxxxxxxx>
Signed-off-by: Geliang Tang <geliang@xxxxxxxxxx>
Signed-off-by: Cong Liu <liucong2@xxxxxxxxxx>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
---
tools/testing/selftests/net/mptcp/mptcp_connect.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c
index d240d02fa443a1cd802f0e705ab36db5c22063a8..893dc36b12f607bec56a41c9961eff272a7837c7 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -1270,7 +1270,7 @@ int main_loop(void)

if (cfg_input && cfg_sockopt_types.mptfo) {
fd_in = open(cfg_input, O_RDONLY);
- if (fd < 0)
+ if (fd_in < 0)
xerror("can't open %s:%d", cfg_input, errno);
}

@@ -1293,7 +1293,7 @@ int main_loop(void)

if (cfg_input && !cfg_sockopt_types.mptfo) {
fd_in = open(cfg_input, O_RDONLY);
- if (fd < 0)
+ if (fd_in < 0)
xerror("can't open %s:%d", cfg_input, errno);
}


--
2.48.1