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/udev/net/link-config.c b/src/udev/net/link-config.c
index 25edb49d28..5f18ba35fc 100644
--- a/src/udev/net/link-config.c
+++ b/src/udev/net/link-config.c
@@ -97,7 +97,7 @@ int link_config_ctx_new(LinkConfigContext **ret) {
                 return -ENOMEM;
 
         *ctx = (LinkConfigContext) {
-                .ethtool_fd = -1,
+                .ethtool_fd = -EBADF,
         };
 
         *ret = TAKE_PTR(ctx);