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Oops, don't assume that the environment is normal in devfs_mount().

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It isn't for the hidden mountpoint.  The static vfs's haven't been
attached then, so mp->mnt_vfc can't be valid.
This commit is contained in:
Bruce Evans 1998-09-08 16:59:37 +00:00
parent 135421ddbf
commit 9754189a91
1 changed files with 6 additions and 4 deletions
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10
sys/miscfs/devfs/devfs_vfsops.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: devfs_vfsops.c,v 1.31 1998/08/16 01:21:51 bde Exp $
* $Id: devfs_vfsops.c,v 1.32 1998/09/07 13:17:00 bde Exp $
*
*/
@ -116,15 +116,17 @@ DBPRINT(("mount "));
return (ENOMEM);
bzero(devfs_mp_p,sizeof(*devfs_mp_p));
devfs_mp_p->mount = mp;
mp->mnt_data = (void *)devfs_mp_p;
/*-
* Fill out some fields
*/
mp->mnt_data = (qaddr_t)devfs_mp_p;
mp->mnt_stat.f_type = mp->mnt_vfc->vfc_typenum;
if (mp->mnt_vfc == NULL)
mp->mnt_stat.f_type = -1; /* doing hidden mountpoint */
else
mp->mnt_stat.f_type = mp->mnt_vfc->vfc_typenum;
mp->mnt_stat.f_fsid.val[0] = (intptr_t)(void *)devfs_mp_p;
mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
mp->mnt_stat.f_fsid.val[1] = mp->mnt_stat.f_type;
mp->mnt_flag |= MNT_LOCAL;
if(error = dev_dup_plane(devfs_mp_p))