drm/radeon: Fix pci_map_page() error checking

[pandora-kernel.git] / drivers / gpu / drm / radeon / r600_cp.c

diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c
index 68e6f43..4f4cd8b 100644 (file)
--- a/drivers/gpu/drm/radeon/r600_cp.c
+++ b/drivers/gpu/drm/radeon/r600_cp.c
@@ -200,7 +200,7 @@ int r600_page_table_init(struct drm_device *dev)
                                                 entry->pagelist[i], 0,
                                                 PAGE_SIZE,
                                                 PCI_DMA_BIDIRECTIONAL);
-               if (entry->busaddr[i] == 0) {
+               if (pci_dma_mapping_error(dev->pdev, entry->busaddr[i])) {
                        DRM_ERROR("unable to map PCIGART pages!\n");
                        r600_page_table_cleanup(dev, gart_info);
                        goto done;