[PATCH 08/13] selftests: net: netlink-dumps: Avoid uninitialized variable error
From: Guenter Roeck <linux@roeck-us.net>
Date: 2025-12-04 16:17:45
Also in:
bpf, linux-kselftest, lkml
Subsystem:
kernel selftest framework, networking [general], the rest · Maintainers:
Shuah Khan, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Building netlink-dumps with -Werror results in netlink-dumps.c: In function ‘dump_extack’: ../kselftest_harness.h:788:35: error: ‘ret’ may be used uninitialized Problem is that the loop which initializes 'ret' may exit early without initializing the variable if recv() returns an error. Always initialize 'ret' to solve the problem. Signed-off-by: Guenter Roeck <linux@roeck-us.net> --- tools/testing/selftests/net/netlink-dumps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/net/netlink-dumps.c b/tools/testing/selftests/net/netlink-dumps.c
index 7618ebe528a4..f4fc0c9910f2 100644
--- a/tools/testing/selftests/net/netlink-dumps.c
+++ b/tools/testing/selftests/net/netlink-dumps.c@@ -112,7 +112,7 @@ static const struct { TEST(dump_extack) { int netlink_sock; - int i, cnt, ret; + int i, cnt, ret = FOUND_ERR; char buf[8192]; int one = 1; ssize_t n;
--
2.43.0