diff options
| author | Christian König <christian.koenig@amd.com> | 2022-06-03 12:43:50 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-06-10 13:20:21 +0200 |
| commit | 81b0d0e4f811553cbe2d58c8a495c124fb626432 (patch) | |
| tree | 8908be9655eb474731a360342a00bafd9afed270 | |
| parent | 4527d47bb63a134c4483a1a478d0ff5874b466c7 (diff) | |
drm/ttm: fix missing NULL check in ttm_device_swapout
Resources about to be destructed are not tied to BOs any more.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Fixes: 6a9b02899402 ("drm/ttm: move the LRU into resource handling v4")
Link: https://patchwork.freedesktop.org/patch/msgid/20220603104604.456991-1-christian.koenig@amd.com
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_device.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c index a0562ab386f5..e7147e304637 100644 --- a/drivers/gpu/drm/ttm/ttm_device.c +++ b/drivers/gpu/drm/ttm/ttm_device.c @@ -156,8 +156,12 @@ int ttm_device_swapout(struct ttm_device *bdev, struct ttm_operation_ctx *ctx, ttm_resource_manager_for_each_res(man, &cursor, res) { struct ttm_buffer_object *bo = res->bo; - uint32_t num_pages = PFN_UP(bo->base.size); + uint32_t num_pages; + if (!bo) + continue; + + num_pages = PFN_UP(bo->base.size); ret = ttm_bo_swapout(bo, ctx, gfp_flags); /* ttm_bo_swapout has dropped the lru_lock */ if (!ret) |