From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:51840 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752472AbcGYAaB (ORCPT ); Sun, 24 Jul 2016 20:30:01 -0400 Subject: Patch "iio:ad7266: Fix probe deferral for vref" has been added to the 4.4-stable tree To: broonie@kernel.org, gregkh@linuxfoundation.org, jic23@kernel.org Cc: , From: Date: Sun, 24 Jul 2016 17:30:17 -0700 Message-ID: <14694066179088@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 iio:ad7266: Fix probe deferral for vref to the 4.4-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: iio-ad7266-fix-probe-deferral-for-vref.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 68b356eb3d9f5e38910fb62e22a78e2a18d544ae Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 20 Jun 2016 13:53:34 +0100 Subject: iio:ad7266: Fix probe deferral for vref From: Mark Brown commit 68b356eb3d9f5e38910fb62e22a78e2a18d544ae upstream. Currently the ad7266 driver treats any failure to get vref as though the regulator were not present but this means that if probe deferral is triggered the driver will act as though the regulator were not present. Instead only use the internal reference if we explicitly got -ENODEV which is what is returned for absent regulators. Signed-off-by: Mark Brown Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/ad7266.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -408,6 +408,9 @@ static int ad7266_probe(struct spi_devic st->vref_mv = ret / 1000; } else { + /* Any other error indicates that the regulator does exist */ + if (PTR_ERR(st->reg) != -ENODEV) + return PTR_ERR(st->reg); /* Use internal reference */ st->vref_mv = 2500; } Patches currently in stable-queue which might be from broonie@kernel.org are queue-4.4/iio-ad7266-fix-probe-deferral-for-vref.patch queue-4.4/iio-ad7266-fix-broken-regulator-error-handling.patch queue-4.4/iio-ad7266-fix-support-for-optional-regulators.patch