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drm: omapdrm: use common helper for extracting pages array 

Use common helper for converting a sg_table object into struct
page pointer array.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
This commit is contained in:
Marek Szyprowski 2020-05-08 11:02:26 +02:00
parent 7690a33f22
commit 537606558c
1 changed files with 4 additions and 10 deletions
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14
drivers/gpu/drm/omapdrm/omap_gem.c
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@ -1297,10 +1297,9 @@ struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size,
omap_obj->dma_addr = sg_dma_address(sgt->sgl);
} else {
/* Create pages list from sgt */
struct sg_page_iter iter;
struct page **pages;
unsigned int npages;
unsigned int i = 0;
unsigned int ret;
npages = DIV_ROUND_UP(size, PAGE_SIZE);
pages = kcalloc(npages, sizeof(*pages), GFP_KERNEL);
@ -1311,14 +1310,9 @@ struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size,
}
omap_obj->pages = pages;
for_each_sg_page(sgt->sgl, &iter, sgt->orig_nents, 0) {
pages[i++] = sg_page_iter_page(&iter);
if (i > npages)
break;
}
if (WARN_ON(i != npages)) {
ret = drm_prime_sg_to_page_addr_arrays(sgt, pages, NULL,
npages);
if (ret) {
omap_gem_free_object(obj);
obj = ERR_PTR(-ENOMEM);
goto done;