tree-wide: use -EBADF for fd initialization

-1 was used everywhere, but -EBADF or -EBADFD started being used in various
places. Let's make things consistent in the new style.

Note that there are two candidates:
EBADF 9 Bad file descriptor
EBADFD 77 File descriptor in bad state

Since we're initializating the fd, we're just assigning a value that means
"no fd yet", so it's just a bad file descriptor, and the first errno fits
better. If instead we had a valid file descriptor that became invalid because
of some operation or state change, the other errno would fit better.

In some places, initialization is dropped if unnecessary.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/fuzz/fuzz-bootspec.c b/src/fuzz/fuzz-bootspec.c
index c08f76c14a..cea674c4c8 100644
--- a/src/fuzz/fuzz-bootspec.c
+++ b/src/fuzz/fuzz-bootspec.c
@@ -106,7 +106,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
 
         (void) boot_config_select_special_entries(&config, /* skip_efivars= */ false);
 
-        _cleanup_close_ int orig_stdout_fd = -1;
+        _cleanup_close_ int orig_stdout_fd = -EBADF;
         if (getenv_bool("SYSTEMD_FUZZ_OUTPUT") <= 0) {
                 orig_stdout_fd = fcntl(fileno(stdout), F_DUPFD_CLOEXEC, 3);
                 if (orig_stdout_fd < 0)