Hi,

On Mon, May 18, 2015 at 10:45:07PM +0200, Uwe Kleine-König wrote:
> devm_gpiod_get_optional returns NULL if devm_gpiod_get would return an
> ENOENT error pointer.
> 
> There is no semantic change intended.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

Thanks, queued.

> probably you could argue if the other errors returned by
> devm_gpiod_get_optional should be ignored or not. I'd say it would be cleaner
> to forward the error but as the driver explictly claims it should be ok, I
> kept this behaviour.
> 
> For forwarding the error replace "data->gpio_trigger = NULL" by
> "return PTR_ERR(data->gpio_trigger)".

Looks sensible, but I took the patch as is for now, since I can't
test the changes (I don't have any ltc2952 including devices). Also
it should be a second patch, so that it can be reverted if needed.

-- Sebastian