2017-11-20 14:36 GMT-08:00 Ronnie Sahlberg <lsahlber@xxxxxxxxxx>:
> Signed-off-by: Ronnie Sahlberg <lsahlber@xxxxxxxxxx>
> ---
> fs/cifs/smb2pdu.c | 30 +++++++++++++++---------------
> 1 file changed, 15 insertions(+), 15 deletions(-)
>
> diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
> index f92b39bbb929..a555d2b39b30 100644
> --- a/fs/cifs/smb2pdu.c
> +++ b/fs/cifs/smb2pdu.c
> @@ -2649,27 +2649,27 @@ SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
> cifs_small_buf_release(req);
>
> rsp = (struct smb2_read_rsp *)rsp_iov.iov_base;
> - shdr = get_sync_hdr(rsp);
>
> - if (shdr->Status == STATUS_END_OF_FILE) {
> + if (rc) {
> + if (rc != -ENODATA) {
> + cifs_stats_fail_inc(io_parms->tcon, SMB2_READ_HE);
> + cifs_dbg(VFS, "Send error in read = %d\n", rc);
> + }
> free_rsp_buf(resp_buftype, rsp_iov.iov_base);
> - return 0;
> + return rc == -ENODATA ? 0 : rc;
> }
>
> - if (rc) {
> - cifs_stats_fail_inc(io_parms->tcon, SMB2_READ_HE);
> - cifs_dbg(VFS, "Send error in read = %d\n", rc);
> - } else {
> - *nbytes = le32_to_cpu(rsp->DataLength);
> - if ((*nbytes > CIFS_MAX_MSGSIZE) ||
> - (*nbytes > io_parms->length)) {
> - cifs_dbg(FYI, "bad length %d for count %d\n",
> - *nbytes, io_parms->length);
> - rc = -EIO;
> - *nbytes = 0;
> - }
> + *nbytes = le32_to_cpu(rsp->DataLength);
> + if ((*nbytes > CIFS_MAX_MSGSIZE) ||
> + (*nbytes > io_parms->length)) {
> + cifs_dbg(FYI, "bad length %d for count %d\n",
> + *nbytes, io_parms->length);
> + rc = -EIO;
> + *nbytes = 0;
> }
>
> + shdr = get_sync_hdr(rsp);
> +
> if (*buf) {
> memcpy(*buf, (char *)shdr + rsp->DataOffset, *nbytes);
> free_rsp_buf(resp_buftype, rsp_iov.iov_base);
> --
> 2.13.3
>
> --
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Reviewed-by: Pavel Shilovsky <pshilov@xxxxxxxxxxxxx>
Stable candidate?
--
Best regards,
Pavel Shilovsky
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