drm/ttm: test for dma_address array allocation failure

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
This commit is contained in:
Jerome Glisse 2011-11-01 19:07:31 -04:00 committed by Dave Airlie
parent 5e2656804a
commit f9517e63ff

View File

@ -320,7 +320,7 @@ 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;