1 files changed, 13 insertions, 2 deletions

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 32b699bebb9c..9a77a5a21557 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3717,9 +3717,16 @@ out:
 static __be32
 nfsd4_free_lock_stateid(struct nfs4_ol_stateid *stp)
 {
-        if (check_for_locks(stp->st_file, lockowner(stp->st_stateowner)))
+        struct nfs4_lockowner *lo = lockowner(stp->st_stateowner);
+
+        if (check_for_locks(stp->st_file, lo))
                 return nfserr_locks_held;
-        release_lock_stateid(stp);
+        /*
+         * Currently there's a 1-1 lock stateid<->lockowner
+         * correspondance, and we have to delete the lockowner when we
+         * delete the lock stateid:
+         */
+        unhash_lockowner(lo);
         return nfs_ok;
 }
 
@@ -4159,6 +4166,10 @@ static bool same_lockowner_ino(struct nfs4_lockowner *lo, struct inode *inode, c
 
         if (!same_owner_str(&lo->lo_owner, owner, clid))
                 return false;
+        if (list_empty(&lo->lo_owner.so_stateids)) {
+                WARN_ON_ONCE(1);
+                return false;
+        }
         lst = list_first_entry(&lo->lo_owner.so_stateids,
                                struct nfs4_ol_stateid, st_perstateowner);
         return lst->st_file->fi_inode == inode;