[PATCH 2/2] drm/nouveau: Use pci_dma_mapping_error()

[Aurelien Jarno]

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

Signed-off-by: Aurelien Jarno <aurelien at aurel32.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..b038de9 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