[src/trunk]: src/sys/external/bsd/ipf/netinet Rearrange code to avoid testing...

[pgoyette <pgoyette%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6efd23e215dc
branches:  trunk
changeset: 816690:6efd23e215dc
user:      pgoyette <pgoyette%NetBSD.org@localhost>
date:      Mon Jul 18 21:07:30 2016 +0000

description:
Rearrange code to avoid testing an error value that has not been set.

Also, for the built-in case, rather than re-inserting our devsw and
then ignoring the EEXIST error, don't bother re-inserting.

CID 1364140

diffstat:

 sys/external/bsd/ipf/netinet/ip_fil_netbsd.c |  16 ++++------------
 1 files changed, 4 insertions(+), 12 deletions(-)

diffs (41 lines):

diff -r b3bc739257e8 -r 6efd23e215dc sys/external/bsd/ipf/netinet/ip_fil_netbsd.c
--- a/sys/external/bsd/ipf/netinet/ip_fil_netbsd.c      Mon Jul 18 21:03:01 2016 +0000
+++ b/sys/external/bsd/ipf/netinet/ip_fil_netbsd.c      Mon Jul 18 21:07:30 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ip_fil_netbsd.c,v 1.17 2016/07/17 02:02:01 pgoyette Exp $      */
+/*     $NetBSD: ip_fil_netbsd.c,v 1.18 2016/07/18 21:07:30 pgoyette Exp $      */
 
 /*
  * Copyright (C) 2012 by Darren Reed.
@@ -8,7 +8,7 @@
 #if !defined(lint)
 #if defined(__NetBSD__)
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ip_fil_netbsd.c,v 1.17 2016/07/17 02:02:01 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ip_fil_netbsd.c,v 1.18 2016/07/18 21:07:30 pgoyette Exp $");
 #else
 static const char sccsid[] = "@(#)ip_fil.c     2.41 6/5/96 (C) 1993-2000 Darren Reed";
 static const char rcsid[] = "@(#)Id: ip_fil_netbsd.c,v 1.1.1.2 2012/07/22 13:45:17 darrenr Exp";
@@ -2202,20 +2202,12 @@
 
 #ifdef _MODULE
        /*
-        * Insert ourself into the cdevsw list.  It's OK if we are
-        * already there, since this will happen when our module is
-        * built-in to the kernel.  (We could skip the insert in
-        * that case, but that would break the possibility of a
-        * unload/re-load sequence for the built-in module, which
-        * corresponds to disable/re-enable.)
+        * Insert ourself into the cdevsw list.
         */
        error = devsw_attach("ipl", NULL, &ipl_bmaj, &ipl_cdevsw, &ipl_cmaj);
-       if (error == EEXIST)
-               error = 0;
-#endif
-
        if (error)
                ipl_fini(opaque);
+#endif
 
        return error;
 }