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Don't forget to clean up after an error reading the directory entry

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in deget().
This commit is contained in:
Bruce Evans 1998-05-17 18:09:28 +00:00
parent 84de3fb77d
commit 5097a20d6e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=36123
2 changed files with 26 additions and 6 deletions
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16
sys/fs/msdosfs/msdosfs_denode.c
View file

@ -1,4 +1,4 @@
/* $Id: msdosfs_denode.c,v 1.36 1998/05/17 11:53:06 phk Exp $ */
/* $Id: msdosfs_denode.c,v 1.37 1998/05/17 18:00:45 bde Exp $ */
/* $NetBSD: msdosfs_denode.c,v 1.28 1998/02/10 14:10:00 mrg Exp $ */
/*-
@ -274,7 +274,6 @@ deget(pmp, dirclust, diroffset, depp)
msdosfs_hashins(ldep);
ldep->de_pmp = pmp;
ldep->de_devvp = pmp->pm_devvp;
ldep->de_refcnt = 1;
/*
* Copy the directory entry into the denode area of the vnode.
@ -315,8 +314,18 @@ deget(pmp, dirclust, diroffset, depp)
/* leave the other fields as garbage */
} else {
error = readep(pmp, dirclust, diroffset, &bp, &direntptr);
if (error)
if (error) {
/*
* The denode does not contain anything useful, so
* it would be wrong to leave it on its hash chain.
* Arrange for vput() to just forget about it.
*/
ldep->de_Name[0] = SLOT_DELETED;
vput(nvp);
*depp = NULL;
return (error);
}
DE_INTERNALIZE(ldep, direntptr);
brelse(bp);
}
@ -348,6 +357,7 @@ deget(pmp, dirclust, diroffset, depp)
getmicrouptime(&tv);
SETHIGH(ldep->de_modrev, tv.tv_sec);
SETLOW(ldep->de_modrev, tv.tv_usec * 4294);
ldep->de_devvp = pmp->pm_devvp;
VREF(ldep->de_devvp);
*depp = ldep;
return (0);

16
sys/msdosfs/msdosfs_denode.c
View file

@ -1,4 +1,4 @@
/* $Id: msdosfs_denode.c,v 1.36 1998/05/17 11:53:06 phk Exp $ */
/* $Id: msdosfs_denode.c,v 1.37 1998/05/17 18:00:45 bde Exp $ */
/* $NetBSD: msdosfs_denode.c,v 1.28 1998/02/10 14:10:00 mrg Exp $ */
/*-
@ -274,7 +274,6 @@ deget(pmp, dirclust, diroffset, depp)
msdosfs_hashins(ldep);
ldep->de_pmp = pmp;
ldep->de_devvp = pmp->pm_devvp;
ldep->de_refcnt = 1;
/*
* Copy the directory entry into the denode area of the vnode.
@ -315,8 +314,18 @@ deget(pmp, dirclust, diroffset, depp)
/* leave the other fields as garbage */
} else {
error = readep(pmp, dirclust, diroffset, &bp, &direntptr);
if (error)
if (error) {
/*
* The denode does not contain anything useful, so
* it would be wrong to leave it on its hash chain.
* Arrange for vput() to just forget about it.
*/
ldep->de_Name[0] = SLOT_DELETED;
vput(nvp);
*depp = NULL;
return (error);
}
DE_INTERNALIZE(ldep, direntptr);
brelse(bp);
}
@ -348,6 +357,7 @@ deget(pmp, dirclust, diroffset, depp)
getmicrouptime(&tv);
SETHIGH(ldep->de_modrev, tv.tv_sec);
SETLOW(ldep->de_modrev, tv.tv_usec * 4294);
ldep->de_devvp = pmp->pm_devvp;
VREF(ldep->de_devvp);
*depp = ldep;
return (0);