summaryrefslogtreecommitdiffstats
path: root/fs/nfsd/vfs.c
diff options
context:
space:
mode:
authorJ. Bruce Fields <bfields@fieldses.org>2007-07-17 04:04:37 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:07 -0700
commit4b2ca38ad6c44ed0442092a829e6e954bf3580af (patch)
treed3256d5a1e2a0276326f8abb2e6aabc3df3812da /fs/nfsd/vfs.c
parent0ac68d17996eb421dde51452b89d5545ba07c6fe (diff)
knfsd: nfsd4: fix handling of acl errrors
nfs4_acl_nfsv4_to_posix() returns an error and returns any posix acls calculated in two caller-provided pointers. It was setting these pointers to -errno in some error cases, resulting in nfsd4_set_nfs4_acl() calling posix_acl_release() with a -errno as an argument. Fix both the caller and the callee, by modifying nfsd4_set_nfs4_acl() to stop relying on the passed-in-pointers being left as NULL in the error case, and by modifying nfs4_acl_nfsv4_to_posix() to stop returning garbage in those pointers. Thanks to Alex Soule for reporting the bug. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Cc: Alexander Soule <soule@umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nfsd/vfs.c')
-rw-r--r--fs/nfsd/vfs.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 945b1cedde2..8d6b5c483ae 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -435,7 +435,7 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
/* Get inode */
error = fh_verify(rqstp, fhp, 0 /* S_IFREG */, MAY_SATTR);
if (error)
- goto out;
+ return error;
dentry = fhp->fh_dentry;
inode = dentry->d_inode;
@@ -444,33 +444,25 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
host_error = nfs4_acl_nfsv4_to_posix(acl, &pacl, &dpacl, flags);
if (host_error == -EINVAL) {
- error = nfserr_attrnotsupp;
- goto out;
+ return nfserr_attrnotsupp;
} else if (host_error < 0)
goto out_nfserr;
host_error = set_nfsv4_acl_one(dentry, pacl, POSIX_ACL_XATTR_ACCESS);
if (host_error < 0)
- goto out_nfserr;
+ goto out_release;
- if (S_ISDIR(inode->i_mode)) {
+ if (S_ISDIR(inode->i_mode))
host_error = set_nfsv4_acl_one(dentry, dpacl, POSIX_ACL_XATTR_DEFAULT);
- if (host_error < 0)
- goto out_nfserr;
- }
-
- error = nfs_ok;
-out:
+out_release:
posix_acl_release(pacl);
posix_acl_release(dpacl);
- return (error);
out_nfserr:
if (host_error == -EOPNOTSUPP)
- error = nfserr_attrnotsupp;
+ return nfserr_attrnotsupp;
else
- error = nfserrno(host_error);
- goto out;
+ return nfserrno(host_error);
}
static struct posix_acl *