Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264912AbUFCPus (ORCPT ); Thu, 3 Jun 2004 11:50:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264864AbUFCPur (ORCPT ); Thu, 3 Jun 2004 11:50:47 -0400 Received: from h-68-165-86-241.dllatx37.covad.net ([68.165.86.241]:5203 "EHLO sol.microgate.com") by vger.kernel.org with ESMTP id S264798AbUFCPsf (ORCPT ); Thu, 3 Jun 2004 11:48:35 -0400 Subject: [PATCH] 2.6.6 synclink_cs.c driver init modifications From: Paul Fulghum To: linux-kernel Cc: Andrew Morton Content-Type: text/plain Organization: Message-Id: <1086277713.2014.61.camel@deimos.microgate.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 03 Jun 2004 10:48:34 -0500 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3734 Lines: 146 Changelog: * Fix cleanup on driver init failure -- Paul Fulghum paulkf@microgate.com --- linux-2.6.6/drivers/char/pcmcia/synclink_cs.c 2004-06-01 15:30:02.945252239 -0500 +++ linux-2.6.6-mg1/drivers/char/pcmcia/synclink_cs.c 2004-06-01 15:28:41.033080615 -0500 @@ -1,7 +1,7 @@ /* * linux/drivers/char/pcmcia/synclink_cs.c * - * $Id: synclink_cs.c,v 4.21 2004/03/08 15:29:23 paulkf Exp $ + * $Id: synclink_cs.c,v 4.22 2004/06/01 20:27:46 paulkf Exp $ * * Device driver for Microgate SyncLink PC Card * multiprotocol serial adapter. @@ -489,7 +489,7 @@ MODULE_LICENSE("GPL"); static char *driver_name = "SyncLink PC Card driver"; -static char *driver_version = "$Revision: 4.21 $"; +static char *driver_version = "$Revision: 4.22 $"; static struct tty_driver *serial_driver; @@ -3130,9 +3130,35 @@ .tiocmset = tiocmset, }; +static void synclink_cs_cleanup(void) +{ + int rc; + + printk("Unloading %s: version %s\n", driver_name, driver_version); + + while(mgslpc_device_list) + mgslpc_remove_device(mgslpc_device_list); + + if (serial_driver) { + if ((rc = tty_unregister_driver(serial_driver))) + printk("%s(%d) failed to unregister tty driver err=%d\n", + __FILE__,__LINE__,rc); + put_tty_driver(serial_driver); + } + + pcmcia_unregister_driver(&mgslpc_driver); + + /* XXX: this really needs to move into generic code.. */ + while (dev_list != NULL) { + if (dev_list->state & DEV_CONFIG) + mgslpc_release((u_long)dev_list); + mgslpc_detach(dev_list); + } +} + static int __init synclink_cs_init(void) { - int error; + int rc; if (break_on_load) { mgslpc_get_text_ptr(); @@ -3141,14 +3167,13 @@ printk("%s %s\n", driver_name, driver_version); - serial_driver = alloc_tty_driver(MAX_DEVICE_COUNT); - if (!serial_driver) - return -ENOMEM; + if ((rc = pcmcia_register_driver(&mgslpc_driver)) < 0) + return rc; - error = pcmcia_register_driver(&mgslpc_driver); - if (error) { - put_tty_driver(serial_driver); - return error; + serial_driver = alloc_tty_driver(MAX_DEVICE_COUNT); + if (!serial_driver) { + rc = -ENOMEM; + goto error; } /* Initialize the tty_driver structure */ @@ -3166,39 +3191,28 @@ serial_driver->flags = TTY_DRIVER_REAL_RAW; tty_set_operations(serial_driver, &mgslpc_ops); - if (tty_register_driver(serial_driver) < 0) + if ((rc = tty_register_driver(serial_driver)) < 0) { printk("%s(%d):Couldn't register serial driver\n", __FILE__,__LINE__); + put_tty_driver(serial_driver); + serial_driver = NULL; + goto error; + } printk("%s %s, tty major#%d\n", driver_name, driver_version, serial_driver->major); return 0; + +error: + synclink_cs_cleanup(); + return rc; } static void __exit synclink_cs_exit(void) { - int rc; - - printk("Unloading %s: version %s\n", driver_name, driver_version); - - while(mgslpc_device_list) - mgslpc_remove_device(mgslpc_device_list); - - if ((rc = tty_unregister_driver(serial_driver))) - printk("%s(%d) failed to unregister tty driver err=%d\n", - __FILE__,__LINE__,rc); - put_tty_driver(serial_driver); - - pcmcia_unregister_driver(&mgslpc_driver); - - /* XXX: this really needs to move into generic code.. */ - while (dev_list != NULL) { - if (dev_list->state & DEV_CONFIG) - mgslpc_release((u_long)dev_list); - mgslpc_detach(dev_list); - } + synclink_cs_cleanup(); } module_init(synclink_cs_init); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/