Re: + eisa-tidy-up-driver_register-return-value.patch added to -mm tree

[Steffen Klassert]

On Thu, Mar 02, 2006 at 03:49:10PM -0800, akpm@xxxxxxxx wrote:

...

> 
> From: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
> 
> Remove the assumption that driver_register() returns the number of devices
> bound to the driver.  In fact, it returns zero for success or a negative
> error value.
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
> Cc: Jeff Garzik <jgarzik@xxxxxxxxx>
> Signed-off-by: Andrew Morton <akpm@xxxxxxxx>

...

> diff -puN drivers/net/3c59x.c~eisa-tidy-up-driver_register-return-value drivers/net/3c59x.c
> --- 25/drivers/net/3c59x.c~eisa-tidy-up-driver_register-return-value	Thu Mar  2 15:48:23 2006
> +++ 25-akpm/drivers/net/3c59x.c	Thu Mar  2 15:48:23 2006
> @@ -1094,9 +1094,11 @@ static int __init vortex_eisa_init (void
>  {
>  	int eisa_found = 0;
>  	int orig_cards_found = vortex_cards_found;
> +	int err;
>  
>  #ifdef CONFIG_EISA
> -	if (eisa_driver_register (&vortex_eisa_driver) >= 0) {
> +	err = eisa_driver_register (&vortex_eisa_driver);
> +	if (!err) {
>  			/* Because of the way EISA bus is probed, we cannot assume
>  			 * any device have been found when we exit from
>  			 * eisa_driver_register (the bus root driver may not be


This results in

drivers/net/3c59x.c: In function `vortex_eisa_init':
drivers/net/3c59x.c:1091: warning: unused variable `err'

if CONFIG_EISA is not defined.
-
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