diff --git a/example/ck_tile/01_fmha/codegen/ops/fmha_bwd.py b/example/ck_tile/01_fmha/codegen/ops/fmha_bwd.py
index 677ccb5ee3..6326a97f8e 100644
--- a/example/ck_tile/01_fmha/codegen/ops/fmha_bwd.py
+++ b/example/ck_tile/01_fmha/codegen/ops/fmha_bwd.py
@@ -170,9 +170,9 @@ float fmha_bwd_(const ck_tile::stream_config& s, fmha_bwd_args a)
     if(s.log_level_ > 0)
         std::cout << ", " << fmha_bwd_dot_do_o_get_name_<dot_do_o_trait_>() << ", " << fmha_bwd_dq_dk_dv_get_name_<dq_dk_dv_trait_>() << ", " << fmha_bwd_convert_dq_get_name_<convert_dq_trait_>() << std::flush;
     return ck_tile::launch_kernel(s,
-        [=](const ck_tile::stream_config& s_){{ fmha_bwd_dot_do_o_oneshot_<dot_do_o_trait_>(s_, a); return hipPeekAtLastError() == hipSuccess; }},
-        [=](const ck_tile::stream_config& s_){{ fmha_bwd_dq_dk_dv_oneshot_<dq_dk_dv_trait_>(s_, a); return hipPeekAtLastError() == hipSuccess; }},
-        [=](const ck_tile::stream_config& s_){{ fmha_bwd_convert_dq_oneshot_<convert_dq_trait_>(s_, a); return hipPeekAtLastError() == hipSuccess; }}
+        [=](const ck_tile::stream_config& s_){{ fmha_bwd_dot_do_o_oneshot_<dot_do_o_trait_>(s_, a); }},
+        [=](const ck_tile::stream_config& s_){{ fmha_bwd_dq_dk_dv_oneshot_<dq_dk_dv_trait_>(s_, a); }},
+        [=](const ck_tile::stream_config& s_){{ fmha_bwd_convert_dq_oneshot_<convert_dq_trait_>(s_, a); }}
     );
 }}
 
diff --git a/example/ck_tile/01_fmha/codegen/ops/fmha_fwd_splitkv.py b/example/ck_tile/01_fmha/codegen/ops/fmha_fwd_splitkv.py
index d36c6e9ec2..c6d1a01792 100644
--- a/example/ck_tile/01_fmha/codegen/ops/fmha_fwd_splitkv.py
+++ b/example/ck_tile/01_fmha/codegen/ops/fmha_fwd_splitkv.py
@@ -253,8 +253,8 @@ float fmha_fwd_splitkv_(const ck_tile::stream_config& s, fmha_fwd_splitkv_args a
     << std::flush;
 
     return ck_tile::launch_kernel(s,
-        [=](const ck_tile::stream_config& s_){{ fmha_fwd_splitkv_oneshot_<fmha_fwd_splitkv_traits_>(s_, a); return hipPeekAtLastError() == hipSuccess; }},
-        [=](const ck_tile::stream_config& s_){{ fmha_fwd_splitkv_combine_oneshot_<fmha_fwd_splitkv_combine_traits_>(s_, a); return hipPeekAtLastError() == hipSuccess; }}
+        [=](const ck_tile::stream_config& s_){{ fmha_fwd_splitkv_oneshot_<fmha_fwd_splitkv_traits_>(s_, a); }},
+        [=](const ck_tile::stream_config& s_){{ fmha_fwd_splitkv_combine_oneshot_<fmha_fwd_splitkv_combine_traits_>(s_, a); }}
     );
 }}
 
diff --git a/example/ck_tile/15_fused_moe/instances/fused_moe_api.cpp b/example/ck_tile/15_fused_moe/instances/fused_moe_api.cpp
index b7eaf5c6e1..466420f066 100644
--- a/example/ck_tile/15_fused_moe/instances/fused_moe_api.cpp
+++ b/example/ck_tile/15_fused_moe/instances/fused_moe_api.cpp
@@ -72,14 +72,8 @@ float fused_moe(fused_moe_traits t, fused_moe_args a, const ck_tile::stream_conf
 
     float r = ck_tile::launch_kernel(
         s,
-        [=, &r0](const ck_tile::stream_config&) {
-            r0 = fused_moesorting(t0, a0, s_sub);
-            return hipPeekAtLastError() == hipSuccess;
-        },
-        [=, &r1](const ck_tile::stream_config&) {
-            r1 = fused_moegemm(t1, a1, s_sub);
-            return hipPeekAtLastError() == hipSuccess;
-        });
+        [=, &r0](const ck_tile::stream_config&) { r0 = fused_moesorting(t0, a0, s_sub); },
+        [=, &r1](const ck_tile::stream_config&) { r1 = fused_moegemm(t1, a1, s_sub); });
 
     // keep unsupported case return negative
     if(r0 < 0 || r1 < 0)
diff --git a/include/ck_tile/host/kernel_launch.hpp b/include/ck_tile/host/kernel_launch.hpp
index 376027ec98..d159787387 100644
--- a/include/ck_tile/host/kernel_launch.hpp
+++ b/include/ck_tile/host/kernel_launch.hpp
@@ -38,7 +38,6 @@ make_kernel(KernelImpl /*f*/, dim3 grid_dim, dim3 block_dim, std::size_t lds_byt
 
     return [=](const stream_config& s) {
         kernel<<<grid_dim, block_dim, lds_byte, s.stream_id_>>>(args...);
-        return hipPeekAtLastError() == hipSuccess;
     };
 }
 
@@ -46,7 +45,7 @@ template <typename... Callables>
 CK_TILE_HOST void launch_and_check(const stream_config& sc, Callables&&... callables)
 {
     // abort the sequence in case of intermediate error
-    if(!(callables(sc) && ...))
+    if(!((static_cast<void>(callables(sc)), hipPeekAtLastError() == hipSuccess) && ...))
     {
         HIP_CHECK_ERROR(hipGetLastError());
     }