MFC: According to module(9), when command is unrecognized, the module should
     return EOPNOTSUPP.

Index: share/examples/kld/cdev/module/cdevmod.c
===================================================================
RCS file: /private/FreeBSD/src/share/examples/kld/cdev/module/cdevmod.c,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -p -r1.6 -r1.7
--- share/examples/kld/cdev/module/cdevmod.c	16 Jul 2004 06:55:34 -0000	1.6
+++ share/examples/kld/cdev/module/cdevmod.c	30 Aug 2004 09:49:58 -0000	1.7
@@ -65,7 +65,7 @@
  * SUCH DAMAGE.
  *
  *
- * $FreeBSD: src/share/examples/kld/cdev/module/cdevmod.c,v 1.6 2004/07/16 06:55:34 tjr Exp $
+ * $FreeBSD: src/share/examples/kld/cdev/module/cdevmod.c,v 1.7 2004/08/30 09:49:58 pjd Exp $
  */
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -134,7 +134,7 @@ cdev_load(module_t mod, int cmd, void *a
 	break;		/* Success*/
 
     default:	/* we only understand load/unload*/
-	err = EINVAL;
+	err = EOPNOTSUPP;
 	break;
     }
 
Index: share/examples/kld/dyn_sysctl/dyn_sysctl.c
===================================================================
RCS file: /private/FreeBSD/src/share/examples/kld/dyn_sysctl/dyn_sysctl.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -p -r1.2 -r1.3
--- share/examples/kld/dyn_sysctl/dyn_sysctl.c	10 Feb 2001 22:36:05 -0000	1.2
+++ share/examples/kld/dyn_sysctl/dyn_sysctl.c	30 Aug 2004 09:49:58 -0000	1.3
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *     $FreeBSD: src/share/examples/kld/dyn_sysctl/dyn_sysctl.c,v 1.2 2001/02/10 22:36:05 abial Exp $
+ *     $FreeBSD: src/share/examples/kld/dyn_sysctl/dyn_sysctl.c,v 1.3 2004/08/30 09:49:58 pjd Exp $
  */
 
 #include <sys/types.h>
@@ -153,7 +153,7 @@ load (module_t mod, int cmd, void *arg)
 			printf("Ok\n");
 		break;
 	default :
-		error = EINVAL;
+		error = EOPNOTSUPP;
 		break;
 	}
 	return error;
Index: share/examples/kld/syscall/module/syscall.c
===================================================================
RCS file: /private/FreeBSD/src/share/examples/kld/syscall/module/syscall.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -p -r1.3 -r1.4
--- share/examples/kld/syscall/module/syscall.c	13 Nov 2001 07:42:30 -0000	1.3
+++ share/examples/kld/syscall/module/syscall.c	30 Aug 2004 09:49:59 -0000	1.4
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $FreeBSD: src/share/examples/kld/syscall/module/syscall.c,v 1.3 2001/11/13 07:42:30 arr Exp $
+ * $FreeBSD: src/share/examples/kld/syscall/module/syscall.c,v 1.4 2004/08/30 09:49:59 pjd Exp $
  */
 
 #include <sys/types.h>
@@ -77,7 +77,7 @@ load (struct module *module, int cmd, vo
 		printf ("syscall unloaded from %d\n", offset);
 		break;
 	default :
-		error = EINVAL;
+		error = EOPNOTSUPP;
 		break;
 	}
 	return error;