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| author |   Wang Qing <wangqing@vivo.com> | 2020-11-07 15:45:44 +0800 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2020-11-09 22:37:19 +0100 |
| commit | abbaa433de07076fb8ef524b77ce55d94bad5fc5 (patch) | |
| tree | e26c7b6aefb6fd4ef8131871b689c0372d023734 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | libbpf: Don't attempt to load unused subprog as an entry-point BPF program (diff) | |
| download | wireguard-linux-abbaa433de07076fb8ef524b77ce55d94bad5fc5.tar.xz wireguard-linux-abbaa433de07076fb8ef524b77ce55d94bad5fc5.zip | |
bpf: Fix passing zero to PTR_ERR() in bpf_btf_printf_prepare
There is a bug when passing zero to PTR_ERR() and return.
Fix the smatch error.
Fixes: c4d0bfb45068 ("bpf: Add bpf_snprintf_btf helper")
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/1604735144-686-1-git-send-email-wangqing@vivo.com
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