Hi all,
this patch fixes bug in Digi epca.c driver. This driver calls
tty_register_driver() 3 times and tty_unregister_driver() 2 times.
This bug causes hang on module unload.
Also a question: somebody knows why this driver scans PCI devices before
registering tty drivers? It makes impossible to remove panic() calls easily.
Best regards.
--
Andrey Panin | Embedded systems software engineer
[EMAIL PROTECTED] | PGP key: http://www.orbita1.ru/~pazke/AndreyPanin.asc
diff -ur linux.vanilla/drivers/char/epca.c linux/drivers/char/epca.c
--- linux.vanilla/drivers/char/epca.c Mon Mar 5 12:01:51 2001
+++ linux/drivers/char/epca.c Tue Mar 6 13:37:58 2001
@@ -1574,7 +1574,8 @@
cli();
if ((tty_unregister_driver(&pc_driver)) ||
- (tty_unregister_driver(&pc_callout)))
+ (tty_unregister_driver(&pc_callout)) ||
+ (tty_unregister_driver(&pc_info)))
{
printk(KERN_WARNING "<Error> - DIGI : cleanup_module failed to
un-register tty driver\n");
restore_flags(flags);
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