From 9e66269d40229cd9823024120910a43af57a9d72 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Sun, 4 Nov 2007 09:44:56 +0100
Subject: [PATCH] ieee1394: iso and async streams: s/g list fix
Torsten Kaiser wrote:
> Looking that calltrace upwards, it seems replacing the
> memset(dma->sglist,...) with sg_init_table(...) would fix the BUG_ON()
> as that inits the SG_MAGIC.
Tested-by: Torsten Kaiser <just.for.lkml@googlemail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
drivers/ieee1394/dma.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/ieee1394/dma.c b/drivers/ieee1394/dma.c
index f5f4983dfbf3..7c4eb39b7024 100644
--- a/drivers/ieee1394/dma.c
+++ b/drivers/ieee1394/dma.c
@@ -103,8 +103,7 @@ int dma_region_alloc(struct dma_region *dma, unsigned long n_bytes,
goto err;
}
- /* just to be safe - this will become unnecessary once sglist->address goes away */
- memset(dma->sglist, 0, dma->n_pages * sizeof(*dma->sglist));
+ sg_init_table(dma->sglist, dma->n_pages);
/* fill scatter/gather list with pages */
for (i = 0; i < dma->n_pages; i++) {
--
2.20.1