In pccngetc(), don't treat cn_tab->cn_dev as a valid device number until
it's initialized.
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@ -1240,7 +1240,7 @@ pccngetc(Dev_t dev)
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register u_char *cp;
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#ifdef XSERVER
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if (vs[minor(dev)].kbd_state == K_RAW)
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if (dev != NODEV && vs[minor(dev)].kbd_state == K_RAW)
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return 0;
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#endif /* XSERVER */
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