Compile fix

1 files changed, 1 insertions, 1 deletions

diff --git a/src/alloc/locking_allocator/locking_allocator.cpp b/src/alloc/locking_allocator/locking_allocator.cpp
index 1595c526f..6cdfc3e8e 100644
--- a/src/alloc/locking_allocator/locking_allocator.cpp
+++ b/src/alloc/locking_allocator/locking_allocator.cpp
@@ -70,7 +70,7 @@ size_t padding_for_alignment(size_t offset, size_t desired_alignment)
 void* mlock_allocator::allocate(size_t num_elems, size_t elem_size)
    {
    if(!m_pool)
-      return;
+      return nullptr;
 
    const size_t n = num_elems * elem_size;
    const size_t alignment = elem_size;