diff --git a/repos/dde_linux/src/lib/lx_kit/memory.cc b/repos/dde_linux/src/lib/lx_kit/memory.cc
index 0d713b2a40..7e8a3f05da 100644
--- a/repos/dde_linux/src/lib/lx_kit/memory.cc
+++ b/repos/dde_linux/src/lib/lx_kit/memory.cc
@@ -57,16 +57,19 @@ Genode::Dataspace_capability Lx_kit::Mem_allocator::attached_dataspace_cap(void
 }
 
 
-void * Lx_kit::Mem_allocator::alloc(size_t size, size_t align)
+void * Lx_kit::Mem_allocator::alloc(size_t const size, size_t const align)
 {
 	if (!size)
 		return nullptr;
 
+	auto cleared_allocation = [] (void * const ptr, size_t const size) {
+		memset(ptr, 0, size);
+		return ptr;
+	};
+
 	return _mem.alloc_aligned(size, (unsigned)log2(align)).convert<void *>(
 
-		[&] (void *ptr) {
-			memset(ptr, 0, size);
-			return ptr; },
+		[&] (void *ptr) { return cleared_allocation(ptr, size); },
 
 		[&] (Range_allocator::Alloc_error) {
 
@@ -92,9 +95,7 @@ void * Lx_kit::Mem_allocator::alloc(size_t size, size_t align)
 			/* re-try allocation */
 			return _mem.alloc_aligned(size, (unsigned)log2(align)).convert<void *>(
 
-				[&] (void *ptr) {
-					memset(ptr, 0, size);
-					return ptr; },
+				[&] (void *ptr) { return cleared_allocation(ptr, size); },
 
 				[&] (Range_allocator::Alloc_error) -> void * {
 					error("memory allocation failed for ", size, " align ", align);