diff options
author | Jakub Sitnicki <jakub@cloudflare.com> | 2020-05-25 14:29:28 +0200 |
---|---|---|
committer | Alexei Starovoitov <ast@kernel.org> | 2020-06-01 23:38:19 +0200 |
commit | fe537393b5795ecbe5746eec0e16124bc998a594 (patch) | |
tree | ec320e5e1cf106fb6ac8897740bc0988817bf11d /kernel/bpf | |
parent | tools, bpftool: Print correct error message when failing to load BTF (diff) | |
download | linux-fe537393b5795ecbe5746eec0e16124bc998a594.tar.xz linux-fe537393b5795ecbe5746eec0e16124bc998a594.zip |
bpf: Fix returned error sign when link doesn't support updates
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: f9d041271cf4 ("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>
Diffstat (limited to 'kernel/bpf')
-rw-r--r-- | kernel/bpf/syscall.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index aaa29fb6f363..d13b804ff045 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -3924,7 +3924,7 @@ static int link_update(union bpf_attr *attr) if (link->ops->update_prog) ret = link->ops->update_prog(link, new_prog, old_prog); else - ret = EINVAL; + ret = -EINVAL; out_put_progs: if (old_prog) |