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 /drivers/gpu/drm/radeon/radeon_device.c | |
| parent | 1a72d65d6291ec248cbc5f05df2487edd714aba6 (diff) | |
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>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_device.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index a64811a9451..4f7a170d156 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; |