patch for 2.1.45 unmount oops

Bill Hawes (whawes@star.net)
Thu, 10 Jul 1997 22:15:22 -0400

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I found the cause of the oops when unmounting in 2.1.45 ... the
sb->s_root value was being set NULL prior to calling put_super in
fs/super.c.

With this fix I can now mount and unmount cleanly in 2.1.45. All we
need now is a slightly less aggressive dcache and we'll have a stable
development kernel again :-)

-Bill
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--- fs/super.c.old Wed Jul 9 07:18:27 1997
+++ fs/super.c Thu Jul 10 21:58:25 1997
@@ -465,7 +465,7 @@
}
if (!(sb = get_super(dev)))
return;
- if (sb->s_root != sb->s_root->d_mounts) {
+ if (sb->s_root && sb->s_root != sb->s_root->d_mounts) {
printk("VFS: Mounted device %s - tssk, tssk\n",
kdevname(dev));
return;

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