[PATCH 06/13] drm/ttm: test for dma_address array allocation failure

[j.glisse at gmail.com]

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>
Reviewed-by: Thomas Hellstrom <thellstrom at vmware.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 3fb4c6d..aceecb5 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -319,7 +319,7 @@ 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;
-- 
1.7.7.1