Linux-IIO Archive on lore.kernel.org
 help / color / Atom feed
From: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
To: linux-pm@vger.kernel.org, linux-acpi@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-input@vger.kernel.org,
	linux-tegra@vger.kernel.org, patches@opensource.cirrus.com,
	ibm-acpi-devel@lists.sourceforge.net,
	platform-driver-x86@vger.kernel.org
Cc: "Rafael J . Wysocki" <rjw@rjwysocki.net>,
	Len Brown <lenb@kernel.org>, Jonathan Cameron <jic23@kernel.org>,
	Hartmut Knaack <knaack.h@gmx.de>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
	Kukjin Kim <kgene@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Vladimir Zapolskiy <vz@mleia.com>,
	Sylvain Lemieux <slemieux.tyco@gmail.com>,
	Laxman Dewangan <ldewangan@nvidia.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Barry Song <baohua@kernel.org>,
	Michael Hennerich <michael.hennerich@analog.com>,
	Nick Dyer <nick@shmanahar.org>,
	Hans de Goede <hdegoede@redhat.com>,
	Ferruh Yigit <fery@cypress.com>, Sangwon Jee <jeesw@melfas.com>,
	Peter Hutterer <peter.hutterer@redhat.com>,
	Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>,
	Andrzej Pietrasiewicz <andrzej.p@collabora.com>,
	kernel@collabora.com
Subject: [PATCH v4 3/7] ACPI: button: Access input device's users under appropriate mutex
Date: Mon,  8 Jun 2020 13:22:07 +0200
Message-ID: <20200608112211.12125-4-andrzej.p@collabora.com> (raw)
In-Reply-To: <20200608112211.12125-1-andrzej.p@collabora.com>

Inspecting input device's 'users' member should be done under device's
mutex, so add appropriate invocations.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
---
 drivers/acpi/button.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 78cfc70cb320..ff7ab291f678 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -456,13 +456,16 @@ static int acpi_button_resume(struct device *dev)
 {
 	struct acpi_device *device = to_acpi_device(dev);
 	struct acpi_button *button = acpi_driver_data(device);
+	struct input_dev *input = button->input;
 
 	button->suspended = false;
-	if (button->type == ACPI_BUTTON_TYPE_LID && button->input->users) {
+	mutex_lock(&input->mutex);
+	if (button->type == ACPI_BUTTON_TYPE_LID && input->users) {
 		button->last_state = !!acpi_lid_evaluate_state(device);
 		button->last_time = ktime_get();
 		acpi_lid_initialize_state(device);
 	}
+	mutex_unlock(&input->mutex);
 	return 0;
 }
 #endif
-- 
2.17.1


  parent reply index

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200506002746.GB89269@dtor-ws>
2020-05-15 16:49 ` [PATCHv2 0/7] Support inhibiting input devices Andrzej Pietrasiewicz
2020-05-15 16:51   ` [PATCHv2 1/7] Input: add input_device_enabled() Andrzej Pietrasiewicz
2020-05-15 16:52   ` [PATCHv2 4/7] iio: adc: exynos: Use input_device_enabled() Andrzej Pietrasiewicz
2020-05-15 16:52   ` [PATCHv2 6/7] Input: Add "inhibited" property Andrzej Pietrasiewicz
2020-05-15 18:19   ` [PATCHv2 0/7] Support inhibiting input devices Hans de Goede
2020-05-17 22:55     ` Peter Hutterer
2020-05-18  2:40       ` Dmitry Torokhov
2020-05-18  7:36         ` Hans de Goede
2020-05-22 15:35         ` Andrzej Pietrasiewicz
2020-05-27  6:13           ` Peter Hutterer
2020-05-18 10:48     ` Andrzej Pietrasiewicz
2020-05-18 12:24       ` Hans de Goede
2020-05-18 13:49         ` Andrzej Pietrasiewicz
2020-05-18 14:23           ` Hans de Goede
2020-05-19  9:02             ` Andrzej Pietrasiewicz
2020-05-19  9:36               ` Hans de Goede
2020-05-27  6:34                 ` Dmitry Torokhov
2020-06-02 16:56                   ` Andrzej Pietrasiewicz
2020-06-02 17:52                     ` Dmitry Torokhov
2020-06-02 18:50                       ` Andrzej Pietrasiewicz
2020-06-02 20:19                         ` Hans de Goede
2020-06-03 13:07                           ` Andrzej Pietrasiewicz
2020-06-03 17:38                             ` Hans de Goede
2020-06-03 17:54                               ` Andrzej Pietrasiewicz
2020-06-03 19:37                                 ` Hans de Goede
2020-06-04  7:28                                   ` Dmitry Torokhov
2020-06-05 17:33                                     ` [PATCH v3 " Andrzej Pietrasiewicz
2020-06-05 17:33                                       ` [PATCH v3 1/7] Input: add input_device_enabled() Andrzej Pietrasiewicz
2020-06-05 17:33                                       ` [PATCH v3 2/7] Input: use input_device_enabled() Andrzej Pietrasiewicz
2020-06-05 17:33                                       ` [PATCH v3 3/7] ACPI: button: Access input device's users under appropriate mutex Andrzej Pietrasiewicz
2020-06-05 17:33                                       ` [PATCH v3 4/7] ACPI: button: Use input_device_enabled() helper Andrzej Pietrasiewicz
2020-06-05 17:33                                       ` [PATCH v3 5/7] iio: adc: exynos: Use input_device_enabled() Andrzej Pietrasiewicz
2020-06-05 19:49                                         ` Michał Mirosław
2020-06-05 17:33                                       ` [PATCH v3 6/7] platform/x86: thinkpad_acpi: " Andrzej Pietrasiewicz
2020-06-05 17:33                                       ` [PATCH v3 7/7] Input: Add "inhibited" property Andrzej Pietrasiewicz
2020-06-05 17:41                                         ` Hans de Goede
2020-06-08 11:22                                           ` [PATCH v4 0/7] Support inhibiting input devices Andrzej Pietrasiewicz
2020-06-08 11:22                                             ` [PATCH v4 1/7] Input: add input_device_enabled() Andrzej Pietrasiewicz
2020-06-08 11:22                                             ` [PATCH v4 2/7] Input: use input_device_enabled() Andrzej Pietrasiewicz
2020-06-08 11:22                                             ` Andrzej Pietrasiewicz [this message]
2020-06-24 15:00                                               ` [PATCH v4 3/7] ACPI: button: Access input device's users under appropriate mutex Rafael J. Wysocki
2020-06-25  5:23                                                 ` Dmitry Torokhov
2020-06-25 10:55                                                   ` Rafael J. Wysocki
2020-06-08 11:22                                             ` [PATCH v4 4/7] ACPI: button: Use input_device_enabled() helper Andrzej Pietrasiewicz
2020-06-25  5:24                                               ` Dmitry Torokhov
2020-06-08 11:22                                             ` [PATCH v4 5/7] iio: adc: exynos: Use input_device_enabled() Andrzej Pietrasiewicz
2020-06-10  1:28                                               ` Michał Mirosław
2020-06-10  7:52                                                 ` [FIXED PATCH " Andrzej Pietrasiewicz
2020-06-08 11:22                                             ` [PATCH v4 6/7] platform/x86: thinkpad_acpi: " Andrzej Pietrasiewicz
2020-06-08 11:22                                             ` [PATCH v4 7/7] Input: Add "inhibited" property Andrzej Pietrasiewicz
2020-06-10  9:49                                             ` [PATCH v4 0/7] Support inhibiting input devices Hans de Goede
2020-06-10 10:38                                               ` Rafael J. Wysocki
2020-06-10 13:12                                                 ` Andrzej Pietrasiewicz
2020-06-10 13:21                                                   ` Hans de Goede
2020-06-10 13:41                                                     ` Andrzej Pietrasiewicz
2020-06-12  8:30                                                       ` Hans de Goede
2020-06-12  8:47                                                         ` Andrzej Pietrasiewicz
2020-06-16 17:29                                                         ` [PATCH] Input: document inhibiting Andrzej Pietrasiewicz
2020-06-16 17:38                                                           ` Randy Dunlap
2020-06-17  7:44                                                           ` Hans de Goede
2020-06-17 10:18                                                             ` [PATCH v2] " Andrzej Pietrasiewicz
2020-06-17 10:21                                                               ` Hans de Goede
2020-06-17 16:52                                                               ` Randy Dunlap
2020-06-23 13:35                                                               ` Pavel Machek
2020-06-10 14:01                                                     ` [PATCH v4 0/7] Support inhibiting input devices Rafael J. Wysocki
2020-06-10 13:52                                                 ` Hans de Goede
2020-06-10 18:28                                                 ` Dmitry Torokhov
2020-06-12  8:14                                                   ` Hans de Goede
2020-06-12  8:17                                             ` Hans de Goede
2020-08-03 14:40                                               ` Andrzej Pietrasiewicz
2020-06-07 20:24                                       ` [PATCH v3 " Pavel Machek
2020-06-08  5:37                                         ` Dmitry Torokhov
2020-06-08  9:28                                           ` Andrzej Pietrasiewicz

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200608112211.12125-4-andrzej.p@collabora.com \
    --to=andrzej.p@collabora.com \
    --cc=baohua@kernel.org \
    --cc=dmitry.torokhov@gmail.com \
    --cc=fery@cypress.com \
    --cc=festevam@gmail.com \
    --cc=hdegoede@redhat.com \
    --cc=ibm-acpi-devel@lists.sourceforge.net \
    --cc=ibm-acpi@hmh.eng.br \
    --cc=jeesw@melfas.com \
    --cc=jic23@kernel.org \
    --cc=jonathanh@nvidia.com \
    --cc=kernel@collabora.com \
    --cc=kernel@pengutronix.de \
    --cc=kgene@kernel.org \
    --cc=knaack.h@gmx.de \
    --cc=krzk@kernel.org \
    --cc=lars@metafoo.de \
    --cc=ldewangan@nvidia.com \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-iio@vger.kernel.org \
    --cc=linux-imx@nxp.com \
    --cc=linux-input@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=linux-samsung-soc@vger.kernel.org \
    --cc=linux-tegra@vger.kernel.org \
    --cc=michael.hennerich@analog.com \
    --cc=nick@shmanahar.org \
    --cc=patches@opensource.cirrus.com \
    --cc=peter.hutterer@redhat.com \
    --cc=platform-driver-x86@vger.kernel.org \
    --cc=pmeerw@pmeerw.net \
    --cc=rjw@rjwysocki.net \
    --cc=s.hauer@pengutronix.de \
    --cc=shawnguo@kernel.org \
    --cc=slemieux.tyco@gmail.com \
    --cc=thierry.reding@gmail.com \
    --cc=vz@mleia.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-IIO Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-iio/0 linux-iio/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-iio linux-iio/ https://lore.kernel.org/linux-iio \
		linux-iio@vger.kernel.org
	public-inbox-index linux-iio

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-iio


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git