diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2018-05-08 13:39:47 +0300 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2018-05-10 06:11:52 +0300 |
| commit | 0d5a03c3d9254813ca76d7886ff9ed76a0aea545 (patch) | |
| tree | 06aaab21d2fa322627de0168e66262f50636e80b /drivers/gpu | |
| parent | a02cbe2e34c576cdc5e7846a3cd55245ab81db47 (diff) | |
| download | linux-0d5a03c3d9254813ca76d7886ff9ed76a0aea545.tar.xz | |
drm/nouveau/ttm: don't dereference nvbo::cli, it can outlive client
Potentially responsible for some random OOPSes.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org [v4.15+]
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_ttm.c | 6 |
3 files changed, 3 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 6f402c4f2bdd..ab61c038f42c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -214,7 +214,6 @@ nouveau_bo_new(struct nouveau_cli *cli, u64 size, int align, INIT_LIST_HEAD(&nvbo->entry); INIT_LIST_HEAD(&nvbo->vma_list); nvbo->bo.bdev = &drm->ttm.bdev; - nvbo->cli = cli; /* This is confusing, and doesn't actually mean we want an uncached * mapping, but is what NOUVEAU_GEM_DOMAIN_COHERENT gets translated diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.h b/drivers/gpu/drm/nouveau/nouveau_bo.h index be8e00b49cde..73c48440d4d7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.h +++ b/drivers/gpu/drm/nouveau/nouveau_bo.h @@ -26,8 +26,6 @@ struct nouveau_bo { struct list_head vma_list; - struct nouveau_cli *cli; - unsigned contig:1; unsigned page:5; unsigned kind:8; diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index dff51a0ee028..8c093ca4222e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -63,7 +63,7 @@ nouveau_vram_manager_new(struct ttm_mem_type_manager *man, struct ttm_mem_reg *reg) { struct nouveau_bo *nvbo = nouveau_bo(bo); - struct nouveau_drm *drm = nvbo->cli->drm; + struct nouveau_drm *drm = nouveau_bdev(bo->bdev); struct nouveau_mem *mem; int ret; @@ -103,7 +103,7 @@ nouveau_gart_manager_new(struct ttm_mem_type_manager *man, struct ttm_mem_reg *reg) { struct nouveau_bo *nvbo = nouveau_bo(bo); - struct nouveau_drm *drm = nvbo->cli->drm; + struct nouveau_drm *drm = nouveau_bdev(bo->bdev); struct nouveau_mem *mem; int ret; @@ -131,7 +131,7 @@ nv04_gart_manager_new(struct ttm_mem_type_manager *man, struct ttm_mem_reg *reg) { struct nouveau_bo *nvbo = nouveau_bo(bo); - struct nouveau_drm *drm = nvbo->cli->drm; + struct nouveau_drm *drm = nouveau_bdev(bo->bdev); struct nouveau_mem *mem; int ret; |