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USB: ohci error handling cleanup

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Restructure the ohci_hcd_mod_init error handling code in to better support
the multiple platform drivers.  This does not change the functionality.


Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Benjamin Herrenschmidt 2007-01-15 20:12:06 -08:00 committed by Greg Kroah-Hartman
parent 4a1a4d8b87
commit de44743b03
1 changed files with 16 additions and 19 deletions
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35
drivers/usb/host/ohci-hcd.c
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@ -929,7 +929,6 @@ MODULE_LICENSE ("GPL");
static int __init ohci_hcd_mod_init(void)
{
int retval = 0;
int ls = 0;
if (usb_disabled())
return -ENODEV;
@ -941,46 +940,44 @@ static int __init ohci_hcd_mod_init(void)
#ifdef PLATFORM_DRIVER
retval = platform_driver_register(&PLATFORM_DRIVER);
if (retval < 0)
return retval;
ls++;
goto error_platform;
#endif
#ifdef OF_PLATFORM_DRIVER
retval = of_register_platform_driver(&OF_PLATFORM_DRIVER);
if (retval < 0)
goto error;
ls++;
goto error_of_platform;
#endif
#ifdef SA1111_DRIVER
retval = sa1111_driver_register(&SA1111_DRIVER);
if (retval < 0)
goto error;
ls++;
goto error_sa1111;
#endif
#ifdef PCI_DRIVER
retval = pci_register_driver(&PCI_DRIVER);
if (retval < 0)
goto error;
ls++;
goto error_pci;
#endif
return retval;
/* Error path */
error:
#ifdef PLATFORM_DRIVER
if (ls--)
platform_driver_unregister(&PLATFORM_DRIVER);
#endif
#ifdef OF_PLATFORM_DRIVER
if (ls--)
of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
#ifdef PCI_DRIVER
error_pci:
#endif
#ifdef SA1111_DRIVER
if (ls--)
sa1111_driver_unregister(&SA1111_DRIVER);
sa1111_driver_unregister(&SA1111_DRIVER);
error_sa1111:
#endif
#ifdef OF_PLATFORM_DRIVER
of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
error_of_platform:
#endif
#ifdef PLATFORM_DRIVER
platform_driver_unregister(&PLATFORM_DRIVER);
error_platform:
#endif
return retval;
}