From d66f43666a6811bcc3e529d5a088e1bdde94ca1b Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Mon, 1 Jul 2019 16:58:55 -0700 Subject: [PATCH] libbpf: make libbpf_strerror_r agnostic to sign of error It's often inconvenient to switch sign of error when passing it into libbpf_strerror_r. It's better for it to handle that automatically. Signed-off-by: Andrii Nakryiko Reviewed-by: Stanislav Fomichev Acked-by: Song Liu Signed-off-by: Daniel Borkmann --- tools/lib/bpf/str_error.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/lib/bpf/str_error.c b/tools/lib/bpf/str_error.c index 00e48ac5b806..b8064eedc177 100644 --- a/tools/lib/bpf/str_error.c +++ b/tools/lib/bpf/str_error.c @@ -11,7 +11,7 @@ */ char *libbpf_strerror_r(int err, char *dst, int len) { - int ret = strerror_r(err, dst, len); + int ret = strerror_r(err < 0 ? -err : err, dst, len); if (ret) snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret); return dst;