linux-kernel - [PATCH 2/3 2.6.24-rc1-gitX] ieee1394: sbp2: s/g list fix

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Date:	Sun, 4 Nov 2007 13:09:26 +0100 (CET)
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	linux1394-devel@...ts.sourceforge.net
cc:	Jens Axboe <jens.axboe@...cle.com>,
	Torsten Kaiser <just.for.lkml@...glemail.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/3 2.6.24-rc1-gitX] ieee1394: sbp2: s/g list fix

Don't panic on chained s/g lists.  Only compile-tested.

Signed-off-by: Stefan Richter <stefanr@...6.in-berlin.de>
---
 drivers/ieee1394/sbp2.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux/drivers/ieee1394/sbp2.c
===================================================================
--- linux.orig/drivers/ieee1394/sbp2.c
+++ linux/drivers/ieee1394/sbp2.c
@@ -1489,7 +1489,7 @@ static void sbp2_prep_command_orb_sg(str
 
 		/* loop through and fill out our SBP-2 page tables
 		 * (and split up anything too large) */
-		for (i = 0, sg_count = 0 ; i < count; i++, sgpnt++) {
+		for (i = 0, sg_count = 0 ; i < count; i++) {
 			sg_len = sg_dma_len(sgpnt);
 			sg_addr = sg_dma_address(sgpnt);
 			while (sg_len) {
@@ -1506,6 +1506,7 @@ static void sbp2_prep_command_orb_sg(str
 				}
 				sg_count++;
 			}
+			sgpnt = sg_next(sgpnt);
 		}
 
 		orb->misc |= ORB_SET_DATA_SIZE(sg_count);

-- 
Stefan Richter
-=====-=-=== =-== --=--
http://arcgraph.de/sr/

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