more /proc/ppc_htab

[Adrian Cox]

In the 2.2.10 kernel (with a Debian userspace), cat /proc/ppc_htab
works, and more /proc/ppc_htab produces a segfault. This fixes it.

- Adrian Cox, AG Electronics

--- linuxppc-2.2.10/arch/ppc/kernel/ppc_htab.c  Thu Dec 10 00:24:23 1998
+++ linux/arch/ppc/kernel/ppc_htab.c    Thu Jul 15 11:17:40 1999
@@ -253,6 +253,8 @@
                return 0;
        if (n > strlen(buffer) - *ppos)
                n = strlen(buffer) - *ppos;
+        if (n > count)
+            n = count;
        copy_to_user(buf, buffer + *ppos, n);
        *ppos += n;
        return n;

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