From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:37814 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752817AbcKVICg (ORCPT ); Tue, 22 Nov 2016 03:02:36 -0500 Subject: Patch "gpio: pca953x: Move memcpy into mutex lock for set multiple" has been added to the 4.8-stable tree To: preid@electromag.com.au, gregkh@linuxfoundation.org, linus.walleij@linaro.org Cc: , From: Date: Tue, 22 Nov 2016 09:02:36 +0100 Message-ID: <14798017562825@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled gpio: pca953x: Move memcpy into mutex lock for set multiple to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: gpio-pca953x-move-memcpy-into-mutex-lock-for-set-multiple.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 386377b5473043c09b2de40bfe5abfb0fc87e1b4 Mon Sep 17 00:00:00 2001 From: Phil Reid Date: Tue, 8 Nov 2016 13:18:11 +0800 Subject: gpio: pca953x: Move memcpy into mutex lock for set multiple From: Phil Reid commit 386377b5473043c09b2de40bfe5abfb0fc87e1b4 upstream. Need to ensure that reg_output is not updated while setting multiple bits. This makes the mutex locking behaviour for the set_multiple call consistent with that of the set_value call. Fixes: b4818afeacbd ("gpio: pca953x: Add set_multiple to allow multiple") Signed-off-by: Phil Reid Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman --- drivers/gpio/gpio-pca953x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -372,8 +372,8 @@ static void pca953x_gpio_set_multiple(st break; } - memcpy(reg_val, chip->reg_output, NBANK(chip)); mutex_lock(&chip->i2c_lock); + memcpy(reg_val, chip->reg_output, NBANK(chip)); for(bank=0; bank> ((bank % sizeof(*mask)) * 8); Patches currently in stable-queue which might be from preid@electromag.com.au are queue-4.8/gpio-pca953x-move-memcpy-into-mutex-lock-for-set-multiple.patch queue-4.8/gpio-pca953x-fix-corruption-of-other-gpios-in-set_multiple.patch