Re: [PATCH V2 1/6] pinctrl: pinctrl-single: use arch_initcall and module_exit

[Russell King - ARM Linux <linux@arm.linux.org.uk>]

On Tue, Feb 05, 2013 at 06:36:34AM +0000, Vishwanathrao Badarkhe, Manish wrote:
> I made following changes, in order to update "dip->p" pointer with 
> correct value:
> 
> -       if (!dpi->p) {
> +       if (IS_ERR_OR_NULL(dpi->p)) {
>                 dpi->p = devm_pinctrl_get(dev);
> -               if (IS_ERR_OR_NULL(dpi->p)) {
> -                       int ret = PTR_ERR(dpi->p);
> -
> -                       dev_dbg(dev, "no pinctrl handle\n");
> -                       /* Only return deferrals */
> -                       if (ret == -EPROBE_DEFER)
> -                               return ret;
> -                       return 0;
> -               }
> +               ret = PTR_ERR(dpi->p);
> +               dev_dbg(dev, "no pinctrl handle\n");
> +               /* Only return deferrals */
> +               if (ret == -EPROBE_DEFER)
> +                       return ret;
> +               return 0;
> 
> Is this intended change?

The above looks totally broken to me.

Oh, it's using IS_ERR_OR_NULL(), so it's bound to be broken.