Return-Path: linux-nfs-owner@vger.kernel.org Received: from mail-qc0-f180.google.com ([209.85.216.180]:45039 "EHLO mail-qc0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750957AbaFZTOC (ORCPT ); Thu, 26 Jun 2014 15:14:02 -0400 Received: by mail-qc0-f180.google.com with SMTP id r5so3516806qcx.25 for ; Thu, 26 Jun 2014 12:14:02 -0700 (PDT) From: Jeff Layton To: bfields@fieldses.org Cc: linux-nfs@vger.kernel.org, Trond Myklebust Subject: [PATCH v2 011/117] nfsd: nfs4_preprocess_seqid_op should only set *stpp on success Date: Thu, 26 Jun 2014 15:11:51 -0400 Message-Id: <1403810017-16062-12-git-send-email-jlayton@primarydata.com> In-Reply-To: <1403810017-16062-1-git-send-email-jlayton@primarydata.com> References: <1403810017-16062-1-git-send-email-jlayton@primarydata.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: From: Trond Myklebust Not technically a bugfix, since nothing tries to use the return pointer if this function doesn't return success, but it could be a problem with some coming changes. Reviewed-by: Christoph Hellwig Signed-off-by: Trond Myklebust Signed-off-by: Jeff Layton --- fs/nfsd/nfs4state.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 461229a01963..3ce5dc30f767 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3964,6 +3964,7 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid, { __be32 status; struct nfs4_stid *s; + struct nfs4_ol_stateid *stp = NULL; dprintk("NFSD: %s: seqid=%d stateid = " STATEID_FMT "\n", __func__, seqid, STATEID_VAL(stateid)); @@ -3973,11 +3974,14 @@ nfs4_preprocess_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid, cstate->minorversion, nn); if (status) return status; - *stpp = openlockstateid(s); + stp = openlockstateid(s); if (!nfsd4_has_session(cstate)) - cstate->replay_owner = (*stpp)->st_stateowner; + cstate->replay_owner = stp->st_stateowner; - return nfs4_seqid_op_checks(cstate, stateid, seqid, *stpp); + status = nfs4_seqid_op_checks(cstate, stateid, seqid, stp); + if (!status) + *stpp = stp; + return status; } static __be32 nfs4_preprocess_confirmed_seqid_op(struct nfsd4_compound_state *cstate, u32 seqid, -- 1.9.3