linux-kernel - [PATCH] selftests: net: fix resource leak in napi_id

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Message-ID: <20250625153334.434747-1-malayarout91@gmail.com>
Date: Wed, 25 Jun 2025 21:03:07 +0530
From: Malaya Kumar Rout <malayarout91@...il.com>
To: malayarout91@...il.com
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Shuah Khan <shuah@...nel.org>,
	netdev@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] selftests: net: fix resource leak  in napi_id_helper.c

Resolve minor resource leaks reported by cppcheck in napi_id_helper.c

cppcheck output before this patch:
tools/testing/selftests/drivers/net/napi_id_helper.c:37:3: error: Resource leak: server [resourceLeak]
tools/testing/selftests/drivers/net/napi_id_helper.c:46:3: error: Resource leak: server [resourceLeak]
tools/testing/selftests/drivers/net/napi_id_helper.c:51:3: error: Resource leak: server [resourceLeak]
tools/testing/selftests/drivers/net/napi_id_helper.c:59:3: error: Resource leak: server [resourceLeak]
tools/testing/selftests/drivers/net/napi_id_helper.c:67:3: error: Resource leak: server [resourceLeak]
tools/testing/selftests/drivers/net/napi_id_helper.c:76:3: error: Resource leak: server [resourceLeak]

cppcheck output after this patch:
No resource leaks found

Signed-off-by: Malaya Kumar Rout <malayarout91@...il.com>
---
 tools/testing/selftests/drivers/net/napi_id_helper.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/drivers/net/napi_id_helper.c b/tools/testing/selftests/drivers/net/napi_id_helper.c
index eecd610c2109..1441b8d49b91 100644
--- a/tools/testing/selftests/drivers/net/napi_id_helper.c
+++ b/tools/testing/selftests/drivers/net/napi_id_helper.c
@@ -34,6 +34,7 @@ int main(int argc, char *argv[])
 
 	if (setsockopt(server, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt))) {
 		perror("setsockopt");
+		close(server);
 		return 1;
 	}
 
@@ -43,11 +44,13 @@ int main(int argc, char *argv[])
 
 	if (bind(server, (struct sockaddr *)&address, sizeof(address)) < 0) {
 		perror("bind failed");
+		close(server);
 		return 1;
 	}
 
 	if (listen(server, 1) < 0) {
 		perror("listen");
+		close(server);
 		return 1;
 	}
 
@@ -56,6 +59,7 @@ int main(int argc, char *argv[])
 	client = accept(server, NULL, 0);
 	if (client < 0) {
 		perror("accept");
+		close(server);
 		return 1;
 	}
 
@@ -64,6 +68,7 @@ int main(int argc, char *argv[])
 			 &optlen);
 	if (ret != 0) {
 		perror("getsockopt");
+		close(server);
 		return 1;
 	}
 
@@ -73,6 +78,7 @@ int main(int argc, char *argv[])
 
 	if (napi_id == 0) {
 		fprintf(stderr, "napi ID is 0\n");
+		close(server);
 		return 1;
 	}
 
-- 
2.43.0