On Tue, Jul 02, 2013 at 07:59:22PM +0900, Seung-Woo Kim wrote:
> From: YoungJun Cho <yj44.cho at samsung.com>
>
> When drm iommu is not supported, buf->pages has to be allocated
> and assigned to phys_to_page() result, which type is struct page *.
> So it is sufficient to allocate buf->pages with multiple struct
> page pointer size.
>
> Signed-off-by: YoungJun Cho <yj44.cho at samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
> ---
> drivers/gpu/drm/exynos/exynos_drm_buf.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c
> b/drivers/gpu/drm/exynos/exynos_drm_buf.c
> index 22865ba..3200622 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_buf.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c
> @@ -57,7 +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,
> + buf->pages = kzalloc(sizeof(struct page *) * nr_pages,
> GFP_KERNEL);
Looks like a prime candidate for kcalloc()
> if (!buf->pages) {
> DRM_ERROR("failed to allocate pages.\n");
> --
> 1.7.9.5
>
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--
Ville Syrj?l?
Intel OTC
