Index: sys/fs/devfs/devfs_vnops.c
===================================================================
--- sys/fs/devfs/devfs_vnops.c
+++ sys/fs/devfs/devfs_vnops.c
@@ -63,7 +63,6 @@
 #include <sys/vnode.h>
 
 static struct vop_vector devfs_vnodeops;
-static struct vop_vector devfs_specops;
 static struct fileops devfs_ops_f;
 
 #include <fs/devfs/devfs.h>
@@ -1760,7 +1759,7 @@
 	.vop_vptocnp =		devfs_vptocnp,
 };
 
-static struct vop_vector devfs_specops = {
+struct vop_vector devfs_specops = {
 	.vop_default =		&default_vnodeops,
 
 	.vop_access =		devfs_access,
Index: sys/kern/vfs_subr.c
===================================================================
--- sys/kern/vfs_subr.c
+++ sys/kern/vfs_subr.c
@@ -2645,6 +2645,7 @@
 		 */
 		if (vp->v_usecount == 0 || (flags & FORCECLOSE)) {
 			VNASSERT(vp->v_usecount == 0 ||
+			    vp->v_op != &devfs_specops ||
 			    (vp->v_type != VCHR && vp->v_type != VBLK), vp,
 			    ("device VNODE %p is FORCECLOSED", vp));
 			vgonel(vp);
Index: sys/sys/vnode.h
===================================================================
--- sys/sys/vnode.h
+++ sys/sys/vnode.h
@@ -822,6 +822,7 @@
 extern struct vop_vector fifo_specops;
 extern struct vop_vector dead_vnodeops;
 extern struct vop_vector default_vnodeops;
+extern struct vop_vector devfs_specops;
 
 #define VOP_PANIC	((void*)(uintptr_t)vop_panic)
 #define VOP_NULL	((void*)(uintptr_t)vop_null)