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Add num_inference_steps <= 0 validation in DDPMScheduler.set_timesteps #13988

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Add num_inference_steps <= 0 validation in DDPMScheduler.set_timesteps #13988

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10 changes: 10 additions & 0 deletions b/src/diffusers/schedulers/scheduling_ddpm.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
timesteps = np.array(timesteps, dtype=np.int64)
self.custom_timesteps = True
else:
if num_inference_steps <= 0:
raise ValueError(
f"`num_inference_steps` must be a positive integer, but got {num_inference_steps}."
)
if num_inference_steps > self.config.num_train_timesteps:
raise ValueError(
f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:"
4 changes: 4 additions & 0 deletions src/diffusers/schedulers/scheduling_ddpm.py
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Original file line number Diff line number Diff line change
Expand Up @@ -308,6 +308,10 @@ def set_timesteps(
timesteps = np.array(timesteps, dtype=np.int64)
self.custom_timesteps = True
else:
if num_inference_steps <= 0:
raise ValueError(
f"`num_inference_steps` must be a positive integer, but got {num_inference_steps}."
)
if num_inference_steps > self.config.num_train_timesteps:
raise ValueError(
f"`num_inference_steps`: {num_inference_steps} cannot be larger than `self.config.train_timesteps`:"
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