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

From: Stefan Richter
Date: Sun Nov 04 2007 - 07:09:53 EST


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

Signed-off-by: Stefan Richter <stefanr@xxxxxxxxxxxxxxxxx>
---
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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