linux

iv/linux

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Daniel T. Lee 932ac54a3e 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

2020-08-06 16:47:00 -07:00

api

libsymbols kallsyms: Parse using io api

2020-05-05 16:35:32 -03:00

bpf

libbf: Fix uninitialized pointer at btf__parse_raw()

2020-08-06 16:47:00 -07:00

lockdep

.gitignore: add SPDX License Identifier

2020-03-25 11:50:48 +01:00

perf

libperf evlist: Fix a refcount leak