On Thu, Feb 3, 2011 at 4:42 PM, Igor Grinberg <grinberg@xxxxxxxxxxxxxx> wrote: > > > On 02/03/11 13:00, Poddar, Sourav wrote: > >> On Thu, Feb 3, 2011 at 3:47 PM, Igor Grinberg <grinberg@xxxxxxxxxxxxxx> wrote: >>> if (pdata->get_pendown_state) { >>> ts->get_pendown_state = pdata->get_pendown_state; >>> ts->gpio_pendown = -1; >>> return 0; >>> } >> Yes we can do so .I initialise it at a place where other variables >> where initialised. >> >>>> Also, why don't we use -EINVAL for the invalid gpio number instead of -1 constant? >>>> >> I used -1 because conditional check done in probe ads7846_probe function >> used this value. >> >> err_free_gpio: >> if (ts->gpio_pendown != -1) >> gpio_free(ts->gpio_pendown); >> > > Well I understand that and that's why in my proposal I used -1 also, but > I thought we can make it even better if we switch to -EINVAL > (though wanted to check if there are any reasonable objections) > and while you are at this, may be you are willing also to submit a patch for this? I guess instead of -EINVAL, -EIO should be initialized to ts->gpio_pendown since that would be more appropriate for gpio and as Balbi suggested it would be better to use gpio_is_valid() for checking this error condition. -Kishon > > -- > Regards, > Igor. > > -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html