From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Sat, 1 Mar 2008 06:36:36 +0000 (+0900)
Subject: [SCSI] tgt: set the data length properly
X-Git-Tag: Ubuntu-goldfish-3.4.0-4.27~19553^2~5
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=cccddc2d15c32bdb6972aaf98f4c9e3e807833df;p=mirror_ubuntu-zesty-kernel.git

[SCSI] tgt: set the data length properly

scsi_tgt uses REQ_TYPE_BLOCK_PC so scsi_init_io doesn't set the length
for us. scsi_tgt needs to do it by itself.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---

diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c
index b14251483c3b..a0f308bd145b 100644
--- a/drivers/scsi/scsi_tgt_lib.c
+++ b/drivers/scsi/scsi_tgt_lib.c
@@ -381,6 +381,11 @@ static int scsi_map_user_pages(struct scsi_tgt_cmd *tcmd, struct scsi_cmnd *cmd,
 		scsi_release_buffers(cmd);
 		goto unmap_rq;
 	}
+	/*
+	 * we use REQ_TYPE_BLOCK_PC so scsi_init_io doesn't set the
+	 * length for us.
+	 */
+	cmd->sdb.length = rq->data_len;
 
 	return 0;