On Jun. 29, 2010, 15:22 +0300, "William A. (Andy) Adamson" <androsadamson@xxxxxxxxx> wrote:
> I see that NFS4ERR_RESOURCE is returned throughout callback_xdr.c ,but
> it is not a legal error return for NFSv4.1. -ENOMEM would be better.
Sigh... it is indeed.
You mean NFS4ERR_DELAY?
Benny
>
> -->Andy
>
> On Tue, Jun 29, 2010 at 6:55 AM, Benny Halevy <bhalevy@xxxxxxxxxxx> wrote:
>> read_buf may return NULL. return NFS4ERR_RESOURCE in this case.
>>
>> Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
>> ---
>> fs/nfs/callback_xdr.c | 8 ++++++++
>> 1 files changed, 8 insertions(+), 0 deletions(-)
>>
>> diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
>> index 7e34bb3..2f69f0d 100644
>> --- a/fs/nfs/callback_xdr.c
>> +++ b/fs/nfs/callback_xdr.c
>> @@ -247,6 +247,10 @@ static __be32 decode_pnfs_layoutrecall_args(struct svc_rqst *rqstp,
>> goto out;
>>
>> p = read_buf(xdr, 2 * sizeof(uint64_t));
>> + if (unlikely(p == NULL)) {
>> + status = htonl(NFS4ERR_RESOURCE);
>> + goto out;
>> + }
>> p = xdr_decode_hyper(p, &args->cbl_seg.offset);
>> p = xdr_decode_hyper(p, &args->cbl_seg.length);
>> status = decode_stateid(xdr, &args->cbl_stateid);
>> @@ -254,6 +258,10 @@ static __be32 decode_pnfs_layoutrecall_args(struct svc_rqst *rqstp,
>> goto out;
>> } else if (args->cbl_recall_type == RETURN_FSID) {
>> p = read_buf(xdr, 2 * sizeof(uint64_t));
>> + if (unlikely(p == NULL)) {
>> + status = htonl(NFS4ERR_RESOURCE);
>> + goto out;
>> + }
>> p = xdr_decode_hyper(p, &args->cbl_fsid.major);
>> p = xdr_decode_hyper(p, &args->cbl_fsid.minor);
>> }
>> --
>> 1.6.6.1
>>
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