linux-kernel - Re: [Regression in 2.6.25-rcX] CD/DVD writer no longer works

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Date:	Thu, 28 Feb 2008 05:21:56 +0100
From:	Mike Galbraith <efault@....de>
To:	zkopex mtrof <zkopex@...oo.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [Regression in 2.6.25-rcX] CD/DVD writer no longer works


On Wed, 2008-02-27 at 19:26 -0800, zkopex mtrof wrote:

> [patch snipped]
> 
> Thank you very much! The patch you supplied fixes the regression!

You're welcome.  In the meantime, I found a better way.

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index ba21d97..7a6f784 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -871,7 +871,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
 			scsi_end_bidi_request(cmd);
 			return;
 		}
-		req->data_len = scsi_get_resid(cmd);
+		req->data_len = req->raw_data_len = scsi_get_resid(cmd);
 	}
 
 	BUG_ON(blk_bidi_rq(req)); /* bidi not support for !blk_pc_request yet */


> To be honest, I was expecting a few replies from the appropriate
> kernel developers. It looks like I have missed something in
> my regression report.

I think some of those are traveling.

	-Mike

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