fix the fp8 topk_config.correction_bias is none bug (#10040)

python/sglang/srt/layers/quantization/fp8.py

@@ -1132,10 +1132,12 @@ class Fp8MoEMethod(FusedMoEMethodBase):
             and topk_config.topk_group is not None
         ), "Current trtllm_fp8_block_scale_moe kernel does not support these two arguments as None"
 
-        if topk_config.correction_bias is None:
-            correction_bias = topk_config.correction_bias.to(x.dtype)
-        else:
-            correction_bias = None
+        correction_bias = (
+            None
+            if topk_config.correction_bias is None
+            else topk_config.correction_bias.to(x.dtype)
+        )
+
         return trtllm_fp8_block_scale_moe(
             routing_logits=router_logits.to(torch.float32),
             routing_bias=correction_bias,