--- shm/ipc/shm.c.~1~	Thu Apr  6 01:00:51 2000
+++ shm/ipc/shm.c	Thu Apr  6 17:05:28 2000
@@ -1227,7 +1227,7 @@
 	sprintf (name, SHM_FMT, id);
 	lock_kernel();
 	dir = lock_parent(shm_sb->s_root);
-	dentry = lookup_one(name, dir);
+	dentry = lookup_one(name, dget(dir));
 	error = PTR_ERR(dentry);
 	if (!IS_ERR(dentry)) {
 		error = vfs_unlink(dir->d_inode, dentry);