[src/pgoyette-localcount]: src/sys/dev Clean up the vnd_spawn() routine so it...

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

details:   https://anonhg.NetBSD.org/src/rev/cadf6a4564f1
branches:  pgoyette-localcount
changeset: 852876:cadf6a4564f1
user:      pgoyette <pgoyette%NetBSD.org@localhost>
date:      Thu Jul 28 01:07:20 2016 +0000

description:
Clean up the vnd_spawn() routine so it actually works.  In particular,
it needs to return the new unit's sc _after_ acquiring a reference to
the unit.

diffstat:

 sys/dev/vnd.c |  10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)

diffs (33 lines):

diff -r b0e2b47b8e19 -r cadf6a4564f1 sys/dev/vnd.c
--- a/sys/dev/vnd.c     Wed Jul 27 23:17:31 2016 +0000
+++ b/sys/dev/vnd.c     Thu Jul 28 01:07:20 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vnd.c,v 1.256.2.10 2016/07/27 23:17:31 pgoyette Exp $  */
+/*     $NetBSD: vnd.c,v 1.256.2.11 2016/07/28 01:07:20 pgoyette Exp $  */
 
 /*-
  * Copyright (c) 1996, 1997, 1998, 2008 The NetBSD Foundation, Inc.
@@ -91,7 +91,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vnd.c,v 1.256.2.10 2016/07/27 23:17:31 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vnd.c,v 1.256.2.11 2016/07/28 01:07:20 pgoyette Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_vnd.h"
@@ -311,12 +311,10 @@
        cf->cf_unit = unit;
        cf->cf_fstate = FSTATE_STAR;
 
+       /* Attach a new unit */
        self = config_attach_pseudo(cf);
-       return device_private(config_attach_pseudo(cf));
 
-       if (config_attach_pseudo(cf) == NULL)
-               return NULL;
-
+       /* And acquire a reference to it */
        self = device_lookup_acquire(&vnd_cd, unit);
        if (self == NULL)
                return NULL;