From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiner Kallweit Subject: [PATCH v4 0/3] i2c: introduce devm_i2c_new_dummy and use it in at24 driver Date: Fri, 15 Dec 2017 18:36:42 +0100 Message-ID: <083569b1-489a-d84f-1a87-bca52fad53e1@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wm0-f68.google.com ([74.125.82.68]:35233 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755506AbdLORgw (ORCPT ); Fri, 15 Dec 2017 12:36:52 -0500 Sender: linux-i2c-owner@vger.kernel.org List-Id: linux-i2c@vger.kernel.org To: Bartosz Golaszewski , Wolfram Sang , Peter Rosin Cc: "linux-i2c@vger.kernel.org" , Linux Kernel Mailing List i2c_new_dummy is typically called from the probe function of the driver for the primary i2c client. It requires calls to i2c_unregister_device in the error path of the probe function and in the remove function. This can be simplified by introducing a device-managed version. Make at24 driver the first user of the new function. Changes in v2: - add change to i2c core to make a version of i2c_new_device available which returns an ERR_PTR instead of NULL in error case - few minor improvements Changes in v3: - rename _i2c_new_device to __i2c_new_device Changes in v4: - add missing kernel doc comments - add Reviewed-by Heiner Kallweit (3): i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy i2c: core: add device-managed version of i2c_new_dummy eeprom: at24: switch to device-managed version of i2c_new_dummy Documentation/driver-model/devres.txt | 3 + drivers/i2c/i2c-core-base.c | 108 ++++++++++++++++++++++++++++++---- drivers/misc/eeprom/at24.c | 31 ++++------ include/linux/i2c.h | 3 + 4 files changed, 112 insertions(+), 33 deletions(-) -- 2.15.1