[src/trunk]: src/sys/dev/dkwedge revert the previous

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

details:   https://anonhg.NetBSD.org/src/rev/4e9ffba084ac
branches:  trunk
changeset: 340087:4e9ffba084ac
user:      mlelstv <mlelstv%NetBSD.org@localhost>
date:      Sat Aug 22 07:42:46 2015 +0000

description:
revert the previous

diffstat:

 sys/dev/dkwedge/dk.c |  15 ++++-----------
 1 files changed, 4 insertions(+), 11 deletions(-)

diffs (50 lines):

diff -r cfd0b9b9d8cc -r 4e9ffba084ac sys/dev/dkwedge/dk.c
--- a/sys/dev/dkwedge/dk.c      Sat Aug 22 05:45:57 2015 +0000
+++ b/sys/dev/dkwedge/dk.c      Sat Aug 22 07:42:46 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: dk.c,v 1.80 2015/08/20 23:08:33 mlelstv Exp $  */
+/*     $NetBSD: dk.c,v 1.81 2015/08/22 07:42:46 mlelstv Exp $  */
 
 /*-
  * Copyright (c) 2004, 2005, 2006, 2007 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.80 2015/08/20 23:08:33 mlelstv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dk.c,v 1.81 2015/08/22 07:42:46 mlelstv Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_dkwedge.h"
@@ -944,7 +944,7 @@
     void *tbuf, size_t len)
 {
        buf_t *bp;
-       int error, isopen;
+       int error;
 
        /*
         * The kernel cannot read from a character device vnode
@@ -964,12 +964,6 @@
        bp->b_cylinder = 0;
        bp->b_error = 0;
 
-       /*
-        * XXX Only the last user of a block device can close it.
-        * There is no reference counting in the driver.
-        */
-       isopen = pdk->dk_bopenmask & (1 << DISKPART(bp->b_dev));
-
        error = bdev_open(bp->b_dev, FREAD, S_IFBLK, curlwp);
        if (error)
                return error;
@@ -978,8 +972,7 @@
        error = biowait(bp);
        putiobuf(bp);
 
-       if (!isopen)
-               bdev_close(bp->b_dev, FREAD, S_IFBLK, curlwp);
+       bdev_close(bp->b_dev, FREAD, S_IFBLK, curlwp);
 
        return error;
 }