From mboxrd@z Thu Jan 1 00:00:00 1970 From: Akinobu Mita Subject: [PATCH 3/7] 3w-9xxx: fix transfer length 0 for 6-byte r/w commands Date: Sat, 16 May 2015 16:17:49 +0900 Message-ID: <1431760673-7180-4-git-send-email-akinobu.mita@gmail.com> References: <1431760673-7180-1-git-send-email-akinobu.mita@gmail.com> Return-path: Received: from mail-pa0-f46.google.com ([209.85.220.46]:34164 "EHLO mail-pa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932595AbbEPHSd (ORCPT ); Sat, 16 May 2015 03:18:33 -0400 Received: by pabru16 with SMTP id ru16so53520747pab.1 for ; Sat, 16 May 2015 00:18:33 -0700 (PDT) In-Reply-To: <1431760673-7180-1-git-send-email-akinobu.mita@gmail.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org, "James E.J. Bottomley" Cc: Akinobu Mita , Adam Radford For 6-byte r/w commands, transfer length 0 means 256 blocks of data, not 0 block. Signed-off-by: Akinobu Mita Cc: Adam Radford Cc: linux-scsi@vger.kernel.org --- drivers/scsi/3w-9xxx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index add419d..71ddb7f 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -1870,8 +1870,11 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, } if (srb) { - if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6) + if (srb->cmnd[0] == READ_6 || srb->cmnd[0] == WRITE_6) { num_sectors = (u32)srb->cmnd[4]; + if (num_sectors == 0) + num_sectors = 256; + } if (srb->cmnd[0] == READ_10 || srb->cmnd[0] == WRITE_10) num_sectors = (u32)srb->cmnd[8] | ((u32)srb->cmnd[7] << 8); -- 1.9.1