Corrected property check

Author: guiyrt

src/diffusers/pipelines/stable_diffusion_3/pipeline_stable_diffusion_3.py

@@ -952,7 +952,7 @@ def __call__(
         # 6. Prepare image embeddings
         # Either image is passed and ip_adapter is active
         # Or image_embeds are passed directly
-        if (ip_adapter_image is not None and self.is_ip_adapter_active()) or ip_adapter_image_embeds is not None:
+        if (ip_adapter_image is not None and self.is_ip_adapter_active) or ip_adapter_image_embeds is not None:
             ip_adapter_image_embeds = self.prepare_ip_adapter_image_embeds(
                 ip_adapter_image,
                 ip_adapter_image_embeds,