Fix callback in Flux.

Skquark · Aug 2, 2024 · bfe3f6a · bfe3f6a
1 parent 768db50
commit bfe3f6a
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/diffusers/pipelines/flux/pipeline_flux.py b/src/diffusers/pipelines/flux/pipeline_flux.py
@@ -731,8 +731,9 @@ def __call__(
                         callback_kwargs[k] = locals()[k]
                     callback_outputs = callback_on_step_end(self, i, t, callback_kwargs)
 
-                    latents = callback_outputs.pop("latents", latents)
-                    prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds)
+                    if callback_outputs is not None:
+                        latents = callback_outputs.pop("latents", latents)
+                        prompt_embeds = callback_outputs.pop("prompt_embeds", prompt_embeds)
 
                 # call the callback, if provided
                 if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0):