From: Geliang Tang <tanggeliang@kylinos.cn>

The server file descriptor ('fd') is opened in server() but never closed.
While accepted connections are properly closed in process_one_client(),
the main listening socket remains open, causing a resource leak.

This patch ensures the server fd is properly closed after processing
clients, bringing the sockopt and inq test cases in line with proper
resource cleanup practices.

Fixes: ce9979129a0b ("selftests: mptcp: add mptcp getsockopt test cases")
Fixes: b51880568f20 ("selftests: mptcp: add inq test case")
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 tools/testing/selftests/net/mptcp/mptcp_inq.c     | 1 +
 tools/testing/selftests/net/mptcp/mptcp_sockopt.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_inq.c b/tools/testing/selftests/net/mptcp/mptcp_inq.c
index f3bcaa48df8f..40f2a1b24763 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_inq.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_inq.c
@@ -502,6 +502,7 @@ static int server(int unixfd)
 
 	process_one_client(r, unixfd);
 
+	close(fd);
 	return 0;
 }
 
diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c
index e934dd26a59d..b44b6c9b0550 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c
@@ -722,6 +722,7 @@ static int server(int pipefd)
 
 	process_one_client(r, pipefd);
 
+	close(fd);
 	return 0;
 }
 
-- 
2.48.1

Hi Geliang,

On 02/09/2025 03:38, Geliang Tang wrote:
> From: Geliang Tang <tanggeliang@kylinos.cn>
> 
> The server file descriptor ('fd') is opened in server() but never closed.
> While accepted connections are properly closed in process_one_client(),
> the main listening socket remains open, causing a resource leak.
> 
> This patch ensures the server fd is properly closed after processing
> clients, bringing the sockopt and inq test cases in line with proper
> resource cleanup practices.

Thanks!

Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>

Cheers,
Matt
-- 
Sponsored by the NGI0 Core fund.