Index: sys/fs/devfs/devfs.h
===================================================================
--- sys/fs/devfs/devfs.h
+++ sys/fs/devfs/devfs.h
@@ -166,6 +166,7 @@
 #define DEVFS_ROOTINO 2
 
 extern unsigned devfs_rule_depth;
+extern struct vop_vector devfs_specops;
 
 #define VFSTODEVFS(mp)	((struct devfs_mount *)((mp)->mnt_data))
 
Index: sys/fs/devfs/devfs_vnops.c
===================================================================
--- sys/fs/devfs/devfs_vnops.c
+++ sys/fs/devfs/devfs_vnops.c
@@ -62,8 +62,8 @@
 #include <sys/unistd.h>
 #include <sys/vnode.h>
 
+struct vop_vector devfs_specops;
 static struct vop_vector devfs_vnodeops;
-static struct vop_vector devfs_specops;
 static struct fileops devfs_ops_f;
 
 #include <fs/devfs/devfs.h>
Index: sys/kern/vfs_subr.c
===================================================================
--- sys/kern/vfs_subr.c
+++ sys/kern/vfs_subr.c
@@ -96,6 +96,8 @@
 #include <ddb/ddb.h>
 #endif
 
+#include <fs/devfs/devfs.h>
+
 static void	delmntque(struct vnode *vp);
 static int	flushbuflist(struct bufv *bufv, int flags, struct bufobj *bo,
 		    int slpflag, int slptimeo);
@@ -2645,6 +2647,7 @@
 		 */
 		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);