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Commit ea3f5d26 authored by Mika Kuoppala's avatar Mika Kuoppala Committed by Daniel Vetter
Browse files

drm/i915/gtt: Don't leak scratch page on mapping error 



Free the scratch page if dma mapping fails.

Signed-off-by: default avatarMika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 66c826a1

drivers/gpu/drm/i915/i915_gem_gtt.c

+3 −1
Original line number Diff line number Diff line
@@ -2143,8 +2143,10 @@ static int setup_scratch_page(struct drm_device *dev) 
#ifdef CONFIG_INTEL_IOMMU

	dma_addr = pci_map_page(dev->pdev, page, 0, PAGE_SIZE,

				PCI_DMA_BIDIRECTIONAL);

	if (pci_dma_mapping_error(dev->pdev, dma_addr))

	if (pci_dma_mapping_error(dev->pdev, dma_addr)) {

		__free_page(page);

		return -EINVAL;

	}

#else

	dma_addr = page_to_phys(page);

#endif