From: YoungJun Cho <yj44.cho@samsung.com>
Date: Wed, 3 Jul 2013 08:09:20 +0000 (+0900)
Subject: drm/exynos: fix pages allocation size in lowlevel_buffer_allocate
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=42ac99a72041a3515bd2b205adb9a239b49c6741;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

drm/exynos: fix pages allocation size in lowlevel_buffer_allocate

When IOMMU is not supported, buf->pages has to be allocated to
assign the result of phys_to_page() which return type is struct
page *. So it is sufficient to allocate buf->pages with the size
of multiple struct page pointers.

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>
---

diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c
index 245c9ae187a1..518b6d8e062b 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 = drm_calloc_large(nr_pages, sizeof(struct page));
+		buf->pages = drm_calloc_large(nr_pages, sizeof(struct page *));
 		if (!buf->pages) {
 			DRM_ERROR("failed to allocate pages.\n");
 			return -ENOMEM;