--- z/ipc/shm.c	Wed Jul 17 15:36:26 2002
+++ 2.4.19rc2aa1/ipc/shm.c	Wed Jul 17 15:32:54 2002
@@ -122,9 +122,9 @@ static void shm_open (struct vm_area_str
  */
 static void shm_destroy (struct shmid_kernel *shp)
 {
-	shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
 	shm_rmid (shp->id);
 	shm_unlock(shp->id);
+	shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
 	shmem_lock(shp->shm_file, 0);
 	fput (shp->shm_file);
 	kfree (shp);