Fix -Wmissing-braces in a few files (#150802) (#2068)

Summary: Pull Request resolved: pytorch/pytorch#150802

Reviewed By: wenxin0319

Differential Revision: D72536167

Co-authored-by: Richard Barnes <[email protected]>

Author: jcaip

torchao/csrc/cuda/rowwise_scaled_linear_cutlass/rowwise_scaled_linear_cutlass.cuh

@@ -214,7 +214,7 @@ void rowwise_scaled_linear_kernel_cutlass_sm8x(
                 ElementBias(0),
                 {cute::_0{}, cute::_1{}, problem_size.n()}};
       } else {
-        return {ElementBias(0)};
+        return {{ElementBias(0)}};
       }
     }()
   };

torchao/csrc/cuda/rowwise_scaled_linear_sparse_cutlass/rowwise_scaled_linear_sparse_cutlass.cuh

@@ -193,7 +193,7 @@ void rowwise_scaled_linear_sparse_kernel_cutlass_sm9x(
           {cute::_1{}, cute::_0{}, cute::_0{}}
         };
       } else {
-        return {ElementBias(0)};
+        return {{ElementBias(0)}};
       }
     }()
   };