Linux kernel bug fix: libbpf: Restore errno after pr_warn.
Subsystem: tools (tools/lib/bpf/libbpf_internal.h)
Bug type: unknown, severity: low
Files changed: tools/lib/bpf/libbpf_internal.h
Introduced by Xin Liu on 2022-12-28 14:03:51 -0800; fixed by Alexei Starovoitov on 2022-12-29 19:18:08 -0800 (lifetime: 1 days)