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nfsd: return errors, not NULL, from export functions 

I converted the various export-returning functions to return -ENOENT instead
of NULL, but missed a few cases.

This particular case could cause actual bugs in the case of a krb5 client that
doesn't match any ip-based client and that is trying to access a filesystem
not exported to krb5 clients.

Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
J. Bruce Fields 2007-07-19 01:49:18 -07:00 committed by Linus Torvalds
parent a280df32db
commit 9a25b96c1f
1 changed files with 4 additions and 4 deletions
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8
fs/nfsd/export.c
View File

@ -1265,7 +1265,7 @@ struct svc_export *
rqst_exp_get_by_name(struct svc_rqst *rqstp, struct vfsmount *mnt,
struct dentry *dentry)
{
struct svc_export *gssexp, *exp = NULL;
struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT);
if (rqstp->rq_client == NULL)
goto gss;
@ -1288,7 +1288,7 @@ gss:
&rqstp->rq_chandle);
if (PTR_ERR(gssexp) == -ENOENT)
return exp;
if (exp && !IS_ERR(exp))
if (!IS_ERR(exp))
exp_put(exp);
return gssexp;
}
@ -1296,7 +1296,7 @@ gss:
struct svc_export *
rqst_exp_find(struct svc_rqst *rqstp, int fsid_type, u32 *fsidv)
{
struct svc_export *gssexp, *exp = NULL;
struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT);
if (rqstp->rq_client == NULL)
goto gss;
@ -1318,7 +1318,7 @@ gss:
&rqstp->rq_chandle);
if (PTR_ERR(gssexp) == -ENOENT)
return exp;
if (exp && !IS_ERR(exp))
if (!IS_ERR(exp))
exp_put(exp);
return gssexp;
}