diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-08-10 14:48:58 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-08-12 09:38:29 +1000 |
| commit | a30f6fb7ce86275af16c7a00dc1b1e46cbb99692 (patch) | |
| tree | 2097765b7dd20577bca52781d7f216c9d1829244 | |
| parent | 1a72d65d6291ec248cbc5f05df2487edd714aba6 (diff) | |
| download | linux-a30f6fb7ce86275af16c7a00dc1b1e46cbb99692.tar.bz2 | |
drm/radeon: Fix pci_map_page() error checking
0 is a valid DMA address from pci_map_page(), use pci_dma_mapping_error()
instead to check for errors
[airlied: fix warning + two other places with errors.]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/ati_pcigart.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_cp.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 3 |
3 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/ati_pcigart.c b/drivers/gpu/drm/ati_pcigart.c index 17be051b7aa3..1c3649242208 100644 --- a/drivers/gpu/drm/ati_pcigart.c +++ b/drivers/gpu/drm/ati_pcigart.c @@ -152,7 +152,7 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga /* we need to support large memory configurations */ entry->busaddr[i] = pci_map_page(dev->pdev, 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"); drm_ati_pcigart_cleanup(dev, gart_info); address = NULL; diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c index 68e6f4349309..4f4cd8b286d5 100644 --- 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; diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index a64811a94519..4f7a170d1566 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -347,7 +347,8 @@ int radeon_dummy_page_init(struct radeon_device *rdev) return -ENOMEM; rdev->dummy_page.addr = pci_map_page(rdev->pdev, rdev->dummy_page.page, 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); - if (!rdev->dummy_page.addr) { + if (pci_dma_mapping_error(rdev->pdev, rdev->dummy_page.addr)) { + dev_err(&rdev->pdev->dev, "Failed to DMA MAP the dummy page\n"); __free_page(rdev->dummy_page.page); rdev->dummy_page.page = NULL; return -ENOMEM; |