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[GFS2] BZ 217008 fsfuzzer fix.

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Update the quilt header comments to match the
code changes.

Change gfs2_lookup_simple to return an error in the case
of a NULL inode.
The callers of gfs2_lookup_simple do not check for NULL
in the no entry case and such would end up dereferencing a NULL ptr.

This fixes:
http://projects.info-pull.com/mokb/MOKB-15-11-2006.html

Signed-off-by: Russell Cattelan <cattelan@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Russell Cattelan 2007-01-08 17:47:51 -06:00 committed by Steven Whitehouse
parent 49686f7106
commit 6c93fd1e57
1 changed files with 11 additions and 1 deletions
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12
fs/gfs2/inode.c
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@ -361,8 +361,18 @@ int gfs2_change_nlink(struct gfs2_inode *ip, int diff)
struct inode *gfs2_lookup_simple(struct inode *dip, const char *name)
{
struct qstr qstr;
struct inode *inode;
gfs2_str2qstr(&qstr, name);
return gfs2_lookupi(dip, &qstr, 1, NULL);
inode = gfs2_lookupi(dip, &qstr, 1, NULL);
/* gfs2_lookupi has inconsistent callers: vfs
* related routines expect NULL for no entry found,
* gfs2_lookup_simple callers expect ENOENT
* and do not check for NULL.
*/
if (inode == NULL)
return ERR_PTR(-ENOENT);
else
return inode;
}