fix CI

Signed-off-by: zzhx1 <zzh_201018@outlook.com>

Author: zzhx1

vllm_ascend/torchair/models/torchair_deepseek_mtp.py

@@ -150,8 +150,9 @@ def forward(
         inputs_embeds: Optional[torch.Tensor] = None,
         spec_step_idx: int = 0,
     ) -> torch.Tensor:
-        if inputs_embeds is None:
+        if inputs_embeds is None and self.embed_tokens is not None:
             inputs_embeds = self.embed_tokens(input_ids)
+        
         current_step_idx = (spec_step_idx % self.num_mtp_layers)
         step_kv_cache = kv_caches[
             current_step_idx] if kv_caches is not None else None