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/shared/socket-label.c b/src/shared/socket-label.c
index 5195ca410c..b86a6adbb9 100644
--- a/src/shared/socket-label.c
+++ b/src/shared/socket-label.c
@@ -32,7 +32,7 @@ int socket_address_listen(
                 mode_t socket_mode,
                 const char *label) {
 
-        _cleanup_close_ int fd = -1;
+        _cleanup_close_ int fd = -EBADF;
         const char *p;
         int r;