From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bamvor Jian Zhang Subject: [PATCH 0/2] Fix bugs in the insertion of gpiochip. Date: Sat, 14 Nov 2015 16:38:54 +0800 Message-ID: <1447490336-10209-1-git-send-email-bamvor.zhangjian@linaro.org> Return-path: Received: from mail-pa0-f42.google.com ([209.85.220.42]:36719 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750814AbbKNIjK (ORCPT ); Sat, 14 Nov 2015 03:39:10 -0500 Received: by pacdm15 with SMTP id dm15so123309829pac.3 for ; Sat, 14 Nov 2015 00:39:09 -0800 (PST) Sender: linux-gpio-owner@vger.kernel.org List-Id: linux-gpio@vger.kernel.org To: linux-gpio@vger.kernel.org Cc: linus.walleij@linaro.org, broonie@kernel.org, Bamvor Jian Zhang These patches try to fix following bugs which is found by my gpio mockup driver and testscript[1](will send them later): 1. Could not check the overlap if the new gpiochip is the secondly gpiochip. 2. Could not check the overlap if the new gpiochip is overlap with the left of gpiochip. 3. Allow overlap of base of different gpiochip. 4. Allow to insert an empty gpiochip The first patch fix the first three by rewriting the logic in the gpiochip_add_to_list. The second patch fix the fourth bug in gpiochip_add. I do not found the checker in gpiolib.c. Hope it is not a redundant logic. [1] https://github.com/bjzhang/linux/tree/gpio-fix-and-mockup-driver Bamvor Jian Zhang (2): gpiolib: improve overlap check of range of gpio gpiolib: do not allow to insert an empty gpiochip drivers/gpio/gpiolib.c | 44 +++++++++++++++++++++++++++++++++----------- 1 file changed, 33 insertions(+), 11 deletions(-) -- 2.1.4