diff --git a/mlir/lib/Dialect/Bufferization/Transforms/BufferDeallocation.cpp b/mlir/lib/Dialect/Bufferization/Transforms/BufferDeallocation.cpp
index 32a77430fa3a..73decbac7382 100644
--- a/mlir/lib/Dialect/Bufferization/Transforms/BufferDeallocation.cpp
+++ b/mlir/lib/Dialect/Bufferization/Transforms/BufferDeallocation.cpp
@@ -349,7 +349,7 @@ private:
     Region *argRegion = block->getParent();
     Operation *parentOp = argRegion->getParentOp();
     RegionBranchOpInterface regionInterface;
-    if (!argRegion || &argRegion->front() != block ||
+    if (&argRegion->front() != block ||
         !(regionInterface = dyn_cast<RegionBranchOpInterface>(parentOp)))
       return success();