Apply suggestion from @liu-cong

Co-authored-by: Cong Liu <[email protected]>

Author: vMaroon

pkg/epp/scheduling/framework/plugins/multi/prefix/plugin.go

@@ -278,7 +278,7 @@ func hashPrompt(ctx context.Context, request *types.LLMRequest, cacheBlockSize i
 	prevBlockHash := BlockHash(h.Sum64())
 	for i := 0; i+cacheBlockSize <= len(userInput); i += cacheBlockSize {
 		h.Reset()
-		_, _ = h.Write(userInput[i : i+cacheBlockSize])
+		h.Write(userInput[i : i+cacheBlockSize])
 		_, _ = h.Write(toBytes(prevBlockHash))
 		res = append(res, BlockHash(h.Sum64()))