[src/trunk]: src/external/cddl/osnet/dev/cyclic Prevent autounload while cycl...

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

details:   https://anonhg.NetBSD.org/src/rev/adc7121383a6
branches:  trunk
changeset: 814774:adc7121383a6
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sat Apr 09 14:50:08 2016 +0000

description:
Prevent autounload while cyclics are still in use.

diffstat:

 external/cddl/osnet/dev/cyclic/cyclic.c |  8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diffs (22 lines):

diff -r cd9bbb6a5bcd -r adc7121383a6 external/cddl/osnet/dev/cyclic/cyclic.c
--- a/external/cddl/osnet/dev/cyclic/cyclic.c   Sat Apr 09 13:38:20 2016 +0000
+++ b/external/cddl/osnet/dev/cyclic/cyclic.c   Sat Apr 09 14:50:08 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cyclic.c,v 1.4 2012/12/02 01:05:16 chs Exp $   */
+/*     $NetBSD: cyclic.c,v 1.5 2016/04/09 14:50:08 riastradh Exp $     */
 
 /*
  * CDDL HEADER START
@@ -1455,6 +1455,12 @@
        case MODULE_CMD_FINI:
                cyclic_unload();
                return 0;
+
+       case MODULE_CMD_AUTOUNLOAD:
+               if (cyclic_id_head != NULL)
+                       return EBUSY;
+               return 0;
+
        default:
                return ENOTTY;
        }