Revert "ttm: Include the 'struct dev' when using the DMA API."

This reverts commit 5a893fc28f0393adb7c885a871b8c59e623fd528.

This causes a use after free in the ttm free alloc pages path,
when it tries to get the be after the be has been destroyed.

Signed-off-by: Dave Airlie <airlied@redhat.com>

2 files changed, 2 insertions, 7 deletions

diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 38ff06822609..efed0820d9fa 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -551,7 +551,6 @@ struct ttm_bo_device {
         struct list_head device_list;
         struct ttm_bo_global *glob;
         struct ttm_bo_driver *driver;
-        struct device *dev;
         rwlock_t vm_lock;
         struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES];
         spinlock_t fence_lock;
diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
index ccb6b7a240e2..8062890f725e 100644
--- a/include/drm/ttm/ttm_page_alloc.h
+++ b/include/drm/ttm/ttm_page_alloc.h
@@ -37,14 +37,12 @@
  * @cstate: ttm caching state for the page.
  * @count: number of pages to allocate.
  * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set).
- * @dev: struct device for appropiate DMA accounting.
  */
 int ttm_get_pages(struct list_head *pages,
                   int flags,
                   enum ttm_caching_state cstate,
                   unsigned count,
-                  dma_addr_t *dma_address,
-                  struct device *dev);
+                  dma_addr_t *dma_address);
 /**
  * Put linked list of pages to pool.
  *
@@ -54,14 +52,12 @@ int ttm_get_pages(struct list_head *pages,
  * @flags: ttm flags for page allocation.
  * @cstate: ttm caching state.
  * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set).
- * @dev: struct device for appropiate DMA accounting.
  */
 void ttm_put_pages(struct list_head *pages,
                    unsigned page_count,
                    int flags,
                    enum ttm_caching_state cstate,
-                   dma_addr_t *dma_address,
-                   struct device *dev);
+                   dma_addr_t *dma_address);
 /**
  * Initialize pool allocator.
  */