linux-kernel - [PATCH v2 2/2] drm/nouveau: Use pci_dma_mapping

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Date:	Wed, 27 Apr 2011 12:13:25 +0200
From:	Aurelien Jarno <aurelien@...el32.net>
To:	David Airlie <airlied@...ux.ie>, dri-devel@...ts.freedesktop.org
Cc:	linux-kernel@...r.kernel.org, Aurelien Jarno <aurelien@...el32.net>
Subject: [PATCH v2 2/2] drm/nouveau: Use pci_dma_mapping_error()

... instead of comparing with DMA_ERROR_CODE, which will only work on
powerpc/sparc/x86.

Signed-off-by: Aurelien Jarno <aurelien@...el32.net>
---
 drivers/gpu/drm/nouveau/nouveau_sgdma.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
index 4bce801..6a04ac9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -42,7 +42,8 @@ nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages,
 
 	nvbe->nr_pages = 0;
 	while (num_pages--) {
-		if (dma_addrs[nvbe->nr_pages] != DMA_ERROR_CODE) {
+		if (!pci_dma_mapping_error(dev->pdev,
+					   dma_addrs[nvbe->nr_pages])) {
 			nvbe->pages[nvbe->nr_pages] =
 					dma_addrs[nvbe->nr_pages];
 		 	nvbe->ttm_alloced[nvbe->nr_pages] = true;
-- 
1.7.2.3

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