redonkable/remarkable-linux
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drm/exynos: use drm_calloc_large when allocates pointer array

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If the type of object is pointer array, the drm_calloc_large() is
more suitable than kzalloc() for its allocation function. And uses
drm_free_large() instead of kfree() also.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
YoungJun Cho 2013-07-03 17:09:19 +09:00 committed by Inki Dae
parent ba3706c0f1
commit af51a5e706
2 changed files with 7 additions and 8 deletions
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9
drivers/gpu/drm/exynos/exynos_drm_buf.c
View file

@ -57,8 +57,7 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
dma_addr_t start_addr;
unsigned int i = 0;
buf->pages = kzalloc(sizeof(struct page) * nr_pages,
GFP_KERNEL);
buf->pages = drm_calloc_large(nr_pages, sizeof(struct page));
if (!buf->pages) {
DRM_ERROR("failed to allocate pages.\n");
return -ENOMEM;
@ -69,7 +68,7 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
&buf->dma_attrs);
if (!buf->kvaddr) {
DRM_ERROR("failed to allocate buffer.\n");
kfree(buf->pages);
drm_free_large(buf->pages);
return -ENOMEM;
}
@ -109,7 +108,7 @@ err_free_attrs:
buf->dma_addr = (dma_addr_t)NULL;
if (!is_drm_iommu_supported(dev))
kfree(buf->pages);
drm_free_large(buf->pages);
return ret;
}
@ -134,7 +133,7 @@ static void lowlevel_buffer_deallocate(struct drm_device *dev,
if (!is_drm_iommu_supported(dev)) {
dma_free_attrs(dev->dev, buf->size, buf->kvaddr,
(dma_addr_t)buf->dma_addr, &buf->dma_attrs);
kfree(buf->pages);
drm_free_large(buf->pages);
} else
dma_free_attrs(dev->dev, buf->size, buf->pages,
(dma_addr_t)buf->dma_addr, &buf->dma_attrs);

6
drivers/gpu/drm/exynos/exynos_drm_g2d.c
View file

@ -390,7 +390,7 @@ out:
kfree(g2d_userptr->sgt);
g2d_userptr->sgt = NULL;
kfree(g2d_userptr->pages);
drm_free_large(g2d_userptr->pages);
g2d_userptr->pages = NULL;
kfree(g2d_userptr);
g2d_userptr = NULL;
@ -463,7 +463,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
npages = (end - start) >> PAGE_SHIFT;
g2d_userptr->npages = npages;
pages = kzalloc(npages * sizeof(struct page *), GFP_KERNEL);
pages = drm_calloc_large(npages, sizeof(struct page *));
if (!pages) {
DRM_ERROR("failed to allocate pages.\n");
kfree(g2d_userptr);
@ -554,7 +554,7 @@ err_put_vma:
exynos_gem_put_vma(g2d_userptr->vma);
err_free_pages:
kfree(pages);
drm_free_large(pages);
kfree(g2d_userptr);
pages = NULL;
g2d_userptr = NULL;