Free buffers synchronously if async caching is disabled. (#21668)

Signed-off-by: Andrew Woloszyn <[email protected]>

Author: AWoloszyn

runtime/src/iree/hal/drivers/hip/hip_device.c

@@ -1006,7 +1006,11 @@ static void iree_hal_hip_async_buffer_release(
   iree_hal_hip_device_t* device = (iree_hal_hip_device_t*)user_data;
   void* ptr = iree_hal_hip_buffer_device_pointer(buffer);
   if (ptr) {
-    iree_hal_hip_allocator_free_async(device->device_allocator, buffer);
+    if (device->params.async_caching) {
+      iree_hal_hip_allocator_free_async(device->device_allocator, buffer);
+    } else {
+      iree_hal_hip_allocator_free_sync(device->device_allocator, buffer);
+    }
   }
 }