From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: [PATCH 4/5] Input: ad7897 - use managed devm_device_add_group Date: Thu, 2 Nov 2017 17:02:13 -0700 Message-ID: <20171103000213.eitzgrh6tb5e4zt7@dtor-ws> References: <20171102150136.1476-1-andi@etezian.org> <20171102150136.1476-5-andi@etezian.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-io0-f196.google.com ([209.85.223.196]:49487 "EHLO mail-io0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932201AbdKCACR (ORCPT ); Thu, 2 Nov 2017 20:02:17 -0400 Content-Disposition: inline In-Reply-To: <20171102150136.1476-5-andi@etezian.org> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Andi Shyti Cc: Michael Hennerich , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Andi Shyti Hi Andi, On Thu, Nov 02, 2017 at 05:01:35PM +0200, Andi Shyti wrote: > Commit 57b8ff070f98 ("driver core: add devm_device_add_group() > and friends") has added the the managed version for creating > sysfs group files. > > Use devm_device_add_group instead of sysfs_create_group and > remove the relative sysfs_remove_group and goto label. > > CC: Michael Hennerich > Signed-off-by: Andi Shyti > --- > drivers/input/touchscreen/ad7877.c | 15 ++------------- > 1 file changed, 2 insertions(+), 13 deletions(-) > > diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c > index 3a4230219b23..c8a143db8681 100644 > --- a/drivers/input/touchscreen/ad7877.c > +++ b/drivers/input/touchscreen/ad7877.c > @@ -780,28 +780,17 @@ static int ad7877_probe(struct spi_device *spi) > return err; > } > > - err = sysfs_create_group(&spi->dev.kobj, &ad7877_attr_group); > + err = devm_device_add_group(&spi->dev, &ad7877_attr_group); > if (err) > return err; > > - err = input_register_device(input_dev); > - if (err) > - goto err_remove_attr_group; > - > - return 0; > - > -err_remove_attr_group: > - sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group); > - > - return err; > + return input_register_device(input_dev); > } > > static int ad7877_remove(struct spi_device *spi) > { > struct ad7877 *ts = spi_get_drvdata(spi); > > - sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group); > - > ad7877_disable(ts); Can we have ad7877_disable(ts) invoked via devm_add_action_or_reset() and get rid of ad7877_remove() completely. I also do not see a benefit of splitting conversion of each individual resource to a managed variant into a separate patch. Logically it is all one operation, going from unmanaged to managed resources, and it would be easier to review at once. Thanks! > > dev_dbg(&spi->dev, "unregistered touchscreen\n"); > -- > 2.15.0 > -- Dmitry