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drm/drm_pci.c: Use dma_zalloc_coherent
Replace dma_alloc_coherent + memset with dma_zalloc_coherent. Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20181023040222.GA1540@jordon-HP-15-Notebook-PC
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1 changed files with 2 additions and 3 deletions
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@ -61,15 +61,14 @@ drm_dma_handle_t *drm_pci_alloc(struct drm_device * dev, size_t size, size_t ali
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return NULL;
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return NULL;
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dmah->size = size;
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dmah->size = size;
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dmah->vaddr = dma_alloc_coherent(&dev->pdev->dev, size, &dmah->busaddr, GFP_KERNEL | __GFP_COMP);
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dmah->vaddr = dma_zalloc_coherent(&dev->pdev->dev, size, &dmah->busaddr,
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GFP_KERNEL | __GFP_COMP);
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if (dmah->vaddr == NULL) {
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if (dmah->vaddr == NULL) {
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kfree(dmah);
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kfree(dmah);
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return NULL;
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return NULL;
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}
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}
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memset(dmah->vaddr, 0, size);
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/* XXX - Is virt_to_page() legal for consistent mem? */
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/* XXX - Is virt_to_page() legal for consistent mem? */
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/* Reserve */
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/* Reserve */
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for (addr = (unsigned long)dmah->vaddr, sz = size;
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for (addr = (unsigned long)dmah->vaddr, sz = size;
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