Before we return the request back to the kmem_cache after a failed i915_gem_request_alloc(), we should assert that it has not been added to any global state tracking. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/i915_gem_request.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c index bd7b21f70283..ed6cead22a86 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.c +++ b/drivers/gpu/drm/i915/i915_gem_request.c @@ -599,6 +599,11 @@ i915_gem_request_alloc(struct intel_engine_cs *engine, return req; err_ctx: + /* Make sure we didn't add ourselves to external state before freeing */ + GEM_BUG_ON(!list_empty(&req->active_list)); + GEM_BUG_ON(!list_empty(&req->priotree.signalers_list)); + GEM_BUG_ON(!list_empty(&req->priotree.waiters_list)); + i915_gem_context_put(ctx); kmem_cache_free(dev_priv->requests, req); err_unreserve: -- 2.10.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
