coccinelle: make use of SYNTHETIC_ERRNO

Ideally, coccinelle would strip unnecessary braces too. But I do not see any
option in coccinelle for this, so instead, I edited the patch text using
search&replace to remove the braces. Unfortunately this is not fully automatic,
in particular it didn't deal well with if-else-if-else blocks and ifdefs, so
there is an increased likelikehood be some bugs in such spots.

I also removed part of the patch that coccinelle generated for udev, where we
returns -1 for failure. This should be fixed independently.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/resolve/resolved-dns-packet.c b/src/resolve/resolved-dns-packet.c
index f54468a0ac..6eb12f8ae5 100644
--- a/src/resolve/resolved-dns-packet.c
+++ b/src/resolve/resolved-dns-packet.c
@@ -48,10 +48,10 @@ int dns_packet_new(
         /* The caller may not check what is going to be truly allocated, so do not allow to
          * allocate a DNS packet bigger than DNS_PACKET_SIZE_MAX.
          */
-        if (min_alloc_dsize > DNS_PACKET_SIZE_MAX) {
-                log_error("Requested packet data size too big: %zu", min_alloc_dsize);
-                return -EFBIG;
-        }
+        if (min_alloc_dsize > DNS_PACKET_SIZE_MAX)
+                return log_error_errno(SYNTHETIC_ERRNO(EFBIG),
+                                       "Requested packet data size too big: %zu",
+                                       min_alloc_dsize);
 
         /* When dns_packet_new() is called with min_alloc_dsize == 0, allocate more than the
          * absolute minimum (which is the dns packet header size), to avoid