[PATCH 06/12] drm/ttm: test for dma_address array allocation failure

[Thomas Hellstrom]

Reviewed-by: Thomas Hellstrom <thellstrom at vmware.com>

On 11/08/2011 12:40 AM, j.glisse at gmail.com wrote:
> From: Jerome Glisse<jglisse at redhat.com>
>
> Signed-off-by: Jerome Glisse<jglisse at redhat.com>
> Reviewed-by: Konrad Rzeszutek Wilk<konrad.wilk at oracle.com>
> ---
>   drivers/gpu/drm/ttm/ttm_tt.c |    2 +-
>   1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
> index 2dd45ca..58ea7dc 100644
> --- a/drivers/gpu/drm/ttm/ttm_tt.c
> +++ b/drivers/gpu/drm/ttm/ttm_tt.c
> @@ -298,7 +298,7 @@ struct ttm_tt *ttm_tt_create(struct ttm_bo_device *bdev, 
> unsigned long size,
>       ttm->dummy_read_page = dummy_read_page;
>
>       ttm_tt_alloc_page_directory(ttm);
> -     if (!ttm->pages) {
> +     if (!ttm->pages || !ttm->dma_address) {
>               ttm_tt_destroy(ttm);
>               printk(KERN_ERR TTM_PFX "Failed allocating page table\n");
>               return NULL;
>