NFSv4: Fix a typo in nfs_inode_reclaim_delegation

We were intending to put the previous instance of delegation->cred
before setting a new one.

Thanks to David Howells for spotting this.

Signed-off-by: Trond Myklebust <[e-mail]>

fs/nfs/delegation.c

···
 void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res)
 {
 	struct nfs_delegation *delegation = NFS_I(inode)->delegation;
+	struct rpc_cred *oldcred;
 
 	if (delegation == NULL)
 		return;
···
 			sizeof(delegation->stateid.data));
 	delegation->type = res->delegation_type;
 	delegation->maxsize = res->maxsize;
-	put_rpccred(cred);
+	oldcred = delegation->cred;
 	delegation->cred = get_rpccred(cred);
 	delegation->flags &= ~NFS_DELEGATION_NEED_RECLAIM;
 	NFS_I(inode)->delegation_state = delegation->type;
 	smp_wmb();
+	put_rpccred(oldcred);
 }
 
 /*