drm/exynos: fixed duplicatd memory allocation bug.

the gem was already allocated at gem allocation time but is allocated
at page fault handler so this patch fixes the problem that gem was
allocated one more time.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 26d51979116b456bb269cff95bc003d6a55394b1..b1850c30e043dcd8ebf7c2099a1bc6cb7e475881 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -712,7 +712,6 @@ int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv,
 int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
        struct drm_gem_object *obj = vma->vm_private_data;
-       struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
        struct drm_device *dev = obj->dev;
        unsigned long f_vaddr;
        pgoff_t page_offset;
@@ -724,21 +723,10 @@ int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 
        mutex_lock(&dev->struct_mutex);
 
-       /*
-        * allocate all pages as desired size if user wants to allocate
-        * physically non-continuous memory.
-        */
-       if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) {
-               ret = exynos_drm_gem_get_pages(obj);
-               if (ret < 0)
-                       goto err;
-       }
-
        ret = exynos_drm_gem_map_pages(obj, vma, f_vaddr, page_offset);
        if (ret < 0)
                DRM_ERROR("failed to map pages.\n");
 
-err:
        mutex_unlock(&dev->struct_mutex);
 
        return convert_to_vm_err_msg(ret);