[src/trunk]: src/sys/dev in vndstrategy(), handle the underlying file being f...

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

details:   https://anonhg.NetBSD.org/src/rev/d70b5f62d7da
branches:  trunk
changeset: 515638:d70b5f62d7da
user:      chs <chs%NetBSD.org@localhost>
date:      Sun Sep 30 12:32:09 2001 +0000

description:
in vndstrategy(), handle the underlying file being force-unmounted.

diffstat:

 sys/dev/vnd.c |  7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diffs (21 lines):

diff -r d6038260f757 -r d70b5f62d7da sys/dev/vnd.c
--- a/sys/dev/vnd.c     Sun Sep 30 11:50:05 2001 +0000
+++ b/sys/dev/vnd.c     Sun Sep 30 12:32:09 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vnd.c,v 1.72 2001/07/07 17:04:02 thorpej Exp $ */
+/*     $NetBSD: vnd.c,v 1.73 2001/09/30 12:32:09 chs Exp $     */
 
 /*-
  * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@@ -374,6 +374,11 @@
        /* ...and convert to a byte offset within the file. */
        bn *= lp->d_secsize;
 
+       if (vnd->sc_vp->v_mount == NULL) {
+               bp->b_error = ENXIO;
+               bp->b_flags |= B_ERROR;
+               goto done;
+       }
        bsize = vnd->sc_vp->v_mount->mnt_stat.f_iosize;
        addr = bp->b_data;
        flags = (bp->b_flags & (B_READ|B_ASYNC)) | B_CALL;