2.4.13-ac8

 fs

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla/fs/char_dev.c linux.ac/fs/char_dev.c
--- linux.vanilla/fs/char_dev.c   Tue May 22 17:35:42 2001
+++ linux.ac/fs/char_dev.c   Sat Nov  3 19:10:30 2001
@@ -104,8 +104,7 @@
 
 void cdput(struct char_device *cdev)
 {
-   if (atomic_dec_and_test(&cdev->count)) {
-      spin_lock(&cdev_lock);
+   if (atomic_dec_and_lock(&cdev->count, &cdev_lock)) {
       list_del(&cdev->hash);
       spin_unlock(&cdev_lock);
       destroy_cdev(cdev);