bpf: Fix returned error sign when link doesn't support updates

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System calls encode returned errors as negative values. Fix a typo that
breaks this convention for bpf(LINK_UPDATE) when bpf_link doesn't support
update operation.

Fixes: f9d041271c ("bpf: Refactor bpf_link update handling")
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200525122928.1164495-1-jakub@cloudflare.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Jakub Sitnicki 2020-05-25 14:29:28 +02:00 • committed by Alexei Starovoitov

parent dc3ca5cf3e

commit fe537393b5

1 changed files with 1 additions and 1 deletions

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kernel/bpf/syscall.c

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