2015-03-19 11:04:51

by Kinglong Mee

[permalink] [raw]
Subject: [PATCH] NFSD: Take care the return value from nfsd4_decode_stateid

Return status after nfsd4_decode_stateid failed.

Signed-off-by: Kinglong Mee <[email protected]>
---
fs/nfsd/nfs4xdr.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index df5e66c..c76654c 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1562,7 +1562,11 @@ nfsd4_decode_layoutget(struct nfsd4_compoundargs *argp,
p = xdr_decode_hyper(p, &lgp->lg_seg.offset);
p = xdr_decode_hyper(p, &lgp->lg_seg.length);
p = xdr_decode_hyper(p, &lgp->lg_minlength);
- nfsd4_decode_stateid(argp, &lgp->lg_sid);
+
+ status = nfsd4_decode_stateid(argp, &lgp->lg_sid);
+ if (status)
+ return status;
+
READ_BUF(4);
lgp->lg_maxcount = be32_to_cpup(p++);

@@ -1580,7 +1584,11 @@ nfsd4_decode_layoutcommit(struct nfsd4_compoundargs *argp,
p = xdr_decode_hyper(p, &lcp->lc_seg.offset);
p = xdr_decode_hyper(p, &lcp->lc_seg.length);
lcp->lc_reclaim = be32_to_cpup(p++);
- nfsd4_decode_stateid(argp, &lcp->lc_sid);
+
+ status = nfsd4_decode_stateid(argp, &lcp->lc_sid);
+ if (status)
+ return status;
+
READ_BUF(4);
lcp->lc_newoffset = be32_to_cpup(p++);
if (lcp->lc_newoffset) {
@@ -1628,7 +1636,11 @@ nfsd4_decode_layoutreturn(struct nfsd4_compoundargs *argp,
READ_BUF(16);
p = xdr_decode_hyper(p, &lrp->lr_seg.offset);
p = xdr_decode_hyper(p, &lrp->lr_seg.length);
- nfsd4_decode_stateid(argp, &lrp->lr_sid);
+
+ status = nfsd4_decode_stateid(argp, &lrp->lr_sid);
+ if (status)
+ return status;
+
READ_BUF(4);
lrp->lrf_body_len = be32_to_cpup(p++);
if (lrp->lrf_body_len > 0) {
--
2.3.3



2015-03-19 14:40:20

by Christoph Hellwig

[permalink] [raw]
Subject: Re: [PATCH] NFSD: Take care the return value from nfsd4_decode_stateid

On Thu, Mar 19, 2015 at 07:04:41PM +0800, Kinglong Mee wrote:
> Return status after nfsd4_decode_stateid failed.
>
> Signed-off-by: Kinglong Mee <[email protected]>

Looks good, I must have missed that during a rebase.

Reviewed-by: Christoph Hellwig <[email protected]>