--- super.c.0   Fri Dec 10 14:49:58 1999
+++ super.c     Fri Dec 10 14:53:32 1999
@@ -58,10 +58,9 @@
int max_super_blocks = NR_SUPER;
LIST_HEAD(super_blocks);

-static struct file_system_type *file_systems = (struct file_system_type *) NULL;
-struct vfsmount *vfsmntlist = (struct vfsmount *) NULL;
-static struct vfsmount *vfsmnttail = (struct vfsmount *) NULL,
-                       *mru_vfsmnt = (struct vfsmount *) NULL;
+static struct file_system_type *file_systems = NULL;
+struct vfsmount *vfsmntlist = NULL;
+static struct vfsmount *vfsmnttail = NULL, *mru_vfsmnt = NULL;

/*
 * This part handles the management of the list of mounted filesystems.
@@ -70,23 +69,19 @@
{
       struct vfsmount *lptr;

-       if (vfsmntlist == (struct vfsmount *)NULL)
-               return ((struct vfsmount *)NULL);
+       if (vfsmntlist == NULL)
+               return NULL;

-       if (mru_vfsmnt != (struct vfsmount *)NULL &&
-           mru_vfsmnt->mnt_dev == dev)
+       if (mru_vfsmnt != NULL && mru_vfsmnt->mnt_dev == dev)
               return (mru_vfsmnt);

-       for (lptr = vfsmntlist;
-            lptr != (struct vfsmount *)NULL;
-            lptr = lptr->mnt_next)
+       for (lptr = vfsmntlist; lptr != NULL; lptr = lptr->mnt_next)
               if (lptr->mnt_dev == dev) {
                       mru_vfsmnt = lptr;
                       return (lptr);
               }

-       return ((struct vfsmount *)NULL);
-       /* NOTREACHED */
+       return NULL;
}

static struct vfsmount *add_vfsmnt(struct super_block *sb,
@@ -140,7 +135,7 @@
{
       struct vfsmount *lptr, *tofree;

-       if (vfsmntlist == (struct vfsmount *)NULL)
+       if (vfsmntlist == NULL)
               return;
       lptr = vfsmntlist;
       if (lptr->mnt_dev == dev) {
@@ -149,13 +144,13 @@
               if (vfsmnttail->mnt_dev == dev)
                       vfsmnttail = vfsmntlist;
       } else {
-               while (lptr->mnt_next != (struct vfsmount *)NULL) {
+               while (lptr->mnt_next != NULL) {
                       if (lptr->mnt_next->mnt_dev == dev)
                               break;
                       lptr = lptr->mnt_next;
               }
               tofree = lptr->mnt_next;
-               if (tofree == (struct vfsmount *)NULL)
+               if (tofree == NULL)
                       return;
               lptr->mnt_next = lptr->mnt_next->mnt_next;
               if (vfsmnttail->mnt_dev == dev)

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