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authorDaniel T. Lee <danieltimlee@gmail.com>2020-08-06 07:33:59 +0900
committerAlexei Starovoitov <ast@kernel.org>2020-08-06 16:47:00 -0700
commit932ac54a3e59335a847f7682b5124a788ab3c798 (patch)
tree6e3d312032e3716fed044334c235458d93d79bab /tools/lib/bpf/libbpf.map
parent0ac10dc1888cd1a8b994f32b51f0eaeba1e803ef (diff)
libbf: Fix uninitialized pointer at btf__parse_raw()
Recently, from commit 94a1fedd63ed ("libbpf: Add btf__parse_raw() and generic btf__parse() APIs"), new API has been added to libbpf that allows to parse BTF from raw data file (btf__parse_raw()). The commit derives build failure of samples/bpf due to improper access of uninitialized pointer at btf_parse_raw(). btf.c: In function btf__parse_raw: btf.c:625:28: error: btf may be used uninitialized in this function 625 | return err ? ERR_PTR(err) : btf; | ~~~~~~~~~~~~~~~~~~~^~~~~ This commit fixes the build failure of samples/bpf by adding code of initializing btf pointer as NULL. Fixes: 94a1fedd63ed ("libbpf: Add btf__parse_raw() and generic btf__parse() APIs") Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200805223359.32109-1-danieltimlee@gmail.com
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