From e17959db37037da21f8fc94a2b763447d36cf0c8 Mon Sep 17 00:00:00 2001
From: Roger Wang <ywang@roblox.com>
Date: Sat, 25 Jan 2025 21:54:23 -0800
Subject: [PATCH] fix

Signed-off-by: Roger Wang <ywang@roblox.com>
---
 vllm/v1/request.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/vllm/v1/request.py b/vllm/v1/request.py
index eefcdaf29e7..2cfcd8b63cc 100644
--- a/vllm/v1/request.py
+++ b/vllm/v1/request.py
@@ -58,7 +58,8 @@ def __init__(
 
         # Sanity check
         assert len(self.mm_inputs) == len(self.mm_positions)
-        assert len(self.mm_inputs) == len(self.mm_hashes)
+        if self.mm_hashes:
+            assert len(self.mm_inputs) == len(self.mm_hashes)
 
         # Cache the computed kv block hashes of the request to avoid
         # recomputing.