5.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jeff Layton <jlayton@xxxxxxxxxx>
[ Upstream commit 4d01416ab41540bb13ec4a39ac4e6c4aa5934bc9 ]
In the case of a revoked delegation, we still fill out the pointer even
when returning an error, which is bad form. Only overwrite the pointer
on success.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/nfsd/nfs4state.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index f207c73ae1b58..1dc3823f3d124 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -6289,6 +6289,7 @@ nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate,
struct nfs4_stid **s, struct nfsd_net *nn)
{
__be32 status;
+ struct nfs4_stid *stid;
bool return_revoked = false;
/*
@@ -6311,15 +6312,16 @@ nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate,
}
if (status)
return status;
- *s = find_stateid_by_type(cstate->clp, stateid, typemask);
- if (!*s)
+ stid = find_stateid_by_type(cstate->clp, stateid, typemask);
+ if (!stid)
return nfserr_bad_stateid;
- if (((*s)->sc_type == NFS4_REVOKED_DELEG_STID) && !return_revoked) {
- nfs4_put_stid(*s);
+ if ((stid->sc_type == NFS4_REVOKED_DELEG_STID) && !return_revoked) {
+ nfs4_put_stid(stid);
if (cstate->minorversion)
return nfserr_deleg_revoked;
return nfserr_bad_stateid;
}
+ *s = stid;
return nfs_ok;
}
--
2.43.0
