[OpenMP] Fix build breakage (NFC) (#80313)
Assign `nullptr` to the pointer instead.
GitOrigin-RevId: cc0c8e592f8ff58ab821a04b7dcfb71403b4bea6
diff --git a/libomptarget/plugins-nextgen/cuda/src/rtl.cpp b/libomptarget/plugins-nextgen/cuda/src/rtl.cpp
index 5ed73d1..f85a00c 100644
--- a/libomptarget/plugins-nextgen/cuda/src/rtl.cpp
+++ b/libomptarget/plugins-nextgen/cuda/src/rtl.cpp
@@ -69,7 +69,7 @@
#if (defined(CUDA_VERSION) && (CUDA_VERSION < 11020))
// Forward declarations of asynchronous memory management functions. This is
// necessary for older versions of CUDA.
-CUresult cuMemAllocAsync(CUdeviceptr *ptr, size_t, CUstream) { *ptr = nullptr; }
+CUresult cuMemAllocAsync(CUdeviceptr *ptr, size_t, CUstream) { *ptr = 0; }
CUresult cuMemFreeAsync(CUdeviceptr dptr, CUstream hStream) {}
#endif
