[PATCH] selftests: net: avoid memory leak

[Zongmin Zhou]

From: Zongmin Zhou <zhouzong...@kylinos.cn>

The buffer be used without free,fix it to avoid memory leak.

Signed-off-by: Zongmin Zhou <zhouzong...@kylinos.cn>
---
 tools/testing/selftests/net/cmsg_sender.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/net/cmsg_sender.c 
b/tools/testing/selftests/net/cmsg_sender.c
index a825e628aee7..5358aa09ecb9 100644
--- a/tools/testing/selftests/net/cmsg_sender.c
+++ b/tools/testing/selftests/net/cmsg_sender.c
@@ -491,6 +491,7 @@ int main(int argc, char *argv[])
        if (err) {
                fprintf(stderr, "Can't resolve address [%s]:%s\n",
                        opt.host, opt.service);
+               free(buf);
                return ERN_SOCK_CREATE;
        }
 
@@ -501,6 +502,7 @@ int main(int argc, char *argv[])
        if (fd < 0) {
                fprintf(stderr, "Can't open socket: %s\n", strerror(errno));
                freeaddrinfo(ai);
+               free(buf);
                return ERN_RESOLVE;
        }
 
@@ -575,5 +577,6 @@ int main(int argc, char *argv[])
 err_out:
        close(fd);
        freeaddrinfo(ai);
+       free(buf);
        return err;
 }
-- 
2.34.1