diff options
| -rw-r--r-- | tools/lib/bpf/libbpf_internal.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h index 98333a6c38e9..e4d05662a96c 100644 --- a/tools/lib/bpf/libbpf_internal.h +++ b/tools/lib/bpf/libbpf_internal.h @@ -544,8 +544,10 @@ static inline int ensure_good_fd(int fd) saved_errno = errno; close(old_fd); errno = saved_errno; - if (fd < 0) + if (fd < 0) { pr_warn("failed to dup FD %d to FD > 2: %d\n", old_fd, -saved_errno); + errno = saved_errno; + } } return fd; } |