> driver-core-warn-about-duplicate-driver-names-on-the-same-bus.patch
>
> This tree can be found at
>
http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/
>
>
>>From
stsp@aknet.ru Sat Apr 26 08:52:51 2008
> From: Stas Sergeev <stsp@aknet.ru>
> Date: Sat, 26 Apr 2008 19:52:35 +0400
> Subject: driver core: warn about duplicate driver names on the same bus
> To: Andrew Morton <akpm@linux-foundation.org>
> Cc: Greg KH <greg@kroah.com>, Takashi Iwai <tiwai@suse.de>
> Message-ID: <48134FC3.6040002@aknet.ru>
>
>
> Currently an attempt to register multiple
> drivers with the same name causes the
> stack trace with some cryptic error message.
> The attached patch adds the necessary check
> and the clear error message.
>
> Signed-off-by: Stas Sergeev <stsp@aknet.ru>
> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
>
> ---
> drivers/base/driver.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> --- a/drivers/base/driver.c
> +++ b/drivers/base/driver.c
> @@ -217,12 +217,22 @@ static void driver_remove_groups(struct
> int driver_register(struct device_driver *drv)
> {
> int ret;
> + struct device_driver *other;
>
> if ((drv->bus->probe && drv->probe) ||
> (drv->bus->remove && drv->remove) ||
> (drv->bus->shutdown && drv->shutdown))
> printk(KERN_WARNING "Driver '%s' needs updating - please use "
> "bus_type methods\n", drv->name);
> +
> + other = driver_find(drv->name, drv->bus);
> + if (other) {
> + put_driver(other);
> + printk(KERN_ERR "Error: Driver '%s' is already registered, "
> + "aborting...\n", drv->name);
> + return -EEXIST;
> + }
> +
> ret = bus_add_driver(drv);
> if (ret)
> return ret;
>
>
> Patches currently in gregkh-2.6 which might be from
stsp@aknet.ru are
>
> driver-core/driver-core-warn-about-duplicate-driver-names-on-the-same-bus.patch
>
