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[PATCH] Char: mxser_new, don't check tty_unregister retval
Like other drivers silently unregister_tty_driver and put_tty_driver. It shouldn't be busy when module release function is called, since we are not bsd, no refs shouldn't be held. Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -2994,15 +2994,12 @@ static int __init mxser_module_init(void)
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static void __exit mxser_module_exit(void)
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{
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int i, err;
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unsigned int i;
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pr_debug("Unloading module mxser ...\n");
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err = tty_unregister_driver(mxvar_sdriver);
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if (!err)
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put_tty_driver(mxvar_sdriver);
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else
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printk(KERN_ERR "Couldn't unregister MOXA Smartio/Industio family serial driver\n");
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tty_unregister_driver(mxvar_sdriver);
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put_tty_driver(mxvar_sdriver);
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for (i = 0; i < MXSER_BOARDS; i++)
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if (mxser_boards[i].board_type != -1)
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