From: Andrii Nakryiko <andrii@kernel.org>
To: <bpf@vger.kernel.org>, <ast@kernel.org>, <daniel@iogearbox.net>
Cc: <andrii@kernel.org>, <kernel-team@fb.com>,
Hengqi Chen <hengqi.chen@gmail.com>
Subject: [PATCH v4 bpf-next 3/9] selftests/bpf: fix memory leaks in btf_type_c_dump() helper
Date: Sun, 7 Nov 2021 08:55:15 -0800 [thread overview]
Message-ID: <20211107165521.9240-4-andrii@kernel.org> (raw)
In-Reply-To: <20211107165521.9240-1-andrii@kernel.org>
Free up memory and resources used by temporary allocated memstream and
btf_dump instance.
Reviewed-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
---
tools/testing/selftests/bpf/btf_helpers.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/bpf/btf_helpers.c b/tools/testing/selftests/bpf/btf_helpers.c
index b5b6b013a245..3d1a748d09d8 100644
--- a/tools/testing/selftests/bpf/btf_helpers.c
+++ b/tools/testing/selftests/bpf/btf_helpers.c
@@ -251,18 +251,23 @@ const char *btf_type_c_dump(const struct btf *btf)
d = btf_dump__new(btf, NULL, &opts, btf_dump_printf);
if (libbpf_get_error(d)) {
fprintf(stderr, "Failed to create btf_dump instance: %ld\n", libbpf_get_error(d));
- return NULL;
+ goto err_out;
}
for (i = 1; i < btf__type_cnt(btf); i++) {
err = btf_dump__dump_type(d, i);
if (err) {
fprintf(stderr, "Failed to dump type [%d]: %d\n", i, err);
- return NULL;
+ goto err_out;
}
}
+ btf_dump__free(d);
fflush(buf_file);
fclose(buf_file);
return buf;
+err_out:
+ btf_dump__free(d);
+ fclose(buf_file);
+ return NULL;
}
--
2.30.2
next prev parent reply other threads:[~2021-11-07 16:55 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-07 16:55 [PATCH v4 bpf-next 0/9] Fix leaks in libbpf and selftests Andrii Nakryiko
2021-11-07 16:55 ` [PATCH v4 bpf-next 1/9] selftests/bpf: pass sanitizer flags to linker through LDFLAGS Andrii Nakryiko
2021-11-07 16:55 ` [PATCH v4 bpf-next 2/9] libbpf: free up resources used by inner map definition Andrii Nakryiko
2021-11-07 16:55 ` Andrii Nakryiko [this message]
2021-11-07 16:55 ` [PATCH v4 bpf-next 4/9] selftests/bpf: free per-cpu values array in bpf_iter selftest Andrii Nakryiko
2021-11-07 16:55 ` [PATCH v4 bpf-next 5/9] selftests/bpf: free inner strings index in btf selftest Andrii Nakryiko
2021-11-07 16:55 ` [PATCH v4 bpf-next 6/9] selftests/bpf: clean up btf and btf_dump in dump_datasec test Andrii Nakryiko
2021-11-07 16:55 ` [PATCH v4 bpf-next 7/9] selftests/bpf: avoid duplicate btf__parse() call Andrii Nakryiko
2021-11-07 16:55 ` [PATCH v4 bpf-next 8/9] selftests/bpf: destroy XDP link correctly Andrii Nakryiko
2021-11-07 16:55 ` [PATCH v4 bpf-next 9/9] selftests/bpf: fix bpf_object leak in skb_ctx selftest Andrii Nakryiko
2021-11-07 17:15 ` [PATCH v4 bpf-next 0/9] Fix leaks in libbpf and selftests Alexei Starovoitov
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