linux-kernel - [PATCH] firewire: core: fix DMA unmapping in iso buffer removal

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Date:	Mon, 15 Jun 2009 00:38:50 +0200 (CEST)
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	linux1394-devel@...ts.sourceforge.net
cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] firewire: core: fix DMA unmapping in iso buffer removal

dmap_unmap_page() shall use the same direction as dma_map_page().

Signed-off-by: Stefan Richter <stefanr@...6.in-berlin.de>
---
 drivers/firewire/core-iso.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux/drivers/firewire/core-iso.c
===================================================================
--- linux.orig/drivers/firewire/core-iso.c
+++ linux/drivers/firewire/core-iso.c
@@ -71,7 +71,7 @@ int fw_iso_buffer_init(struct fw_iso_buf
 	for (j = 0; j < i; j++) {
 		address = page_private(buffer->pages[j]);
 		dma_unmap_page(card->device, address,
-			       PAGE_SIZE, DMA_TO_DEVICE);
+			       PAGE_SIZE, direction);
 		__free_page(buffer->pages[j]);
 	}
 	kfree(buffer->pages);
@@ -108,7 +108,7 @@ void fw_iso_buffer_destroy(struct fw_iso
 	for (i = 0; i < buffer->page_count; i++) {
 		address = page_private(buffer->pages[i]);
 		dma_unmap_page(card->device, address,
-			       PAGE_SIZE, DMA_TO_DEVICE);
+			       PAGE_SIZE, buffer->direction);
 		__free_page(buffer->pages[i]);
 	}
 

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

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