diff -Naur NVIDIA-Linux-x86_64-340.108-old/kernel/nv-drm.c NVIDIA-Linux-x86_64-340.108-new/kernel/nv-drm.c
--- NVIDIA-Linux-x86_64-340.108-old/kernel/nv-drm.c	2021-11-06 20:08:18.779739237 +0200
+++ NVIDIA-Linux-x86_64-340.108-new/kernel/nv-drm.c	2021-11-06 20:42:13.443288819 +0200
@@ -529,7 +529,9 @@ RM_STATUS NV_API_CALL nv_alloc_os_descri
 #if defined(NV_DRM_GEM_OBJECT_PUT_UNLOCKED_PRESENT)
     drm_gem_object_put_unlocked(&nv_obj->base);
 #else
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 9, 0)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0)
+    drm_gem_object_put(&nv_obj->base);
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(5, 9, 0)
     drm_gem_object_put_locked(&nv_obj->base);
 #else
     drm_gem_object_unreference_unlocked(&nv_obj->base);