Patch "power: supply: axp288_charger: Properly stop work on probe-error / remove" has been added to the 4.15-stable tree

Patch "power: supply: axp288_charger: Properly stop work on probe-error / remove" has been added to the 4.15-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    power: supply: axp288_charger: Properly stop work on probe-error / remove

to the 4.15-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:
     power-supply-axp288_charger-properly-stop-work-on-probe-error-remove.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Mon Apr  9 10:16:32 CEST 2018
From: Hans de Goede <hdegoede@redhat.com>
Date: Tue, 26 Dec 2017 13:59:09 +0100
Subject: power: supply: axp288_charger: Properly stop work on probe-error / remove

From: Hans de Goede <hdegoede@redhat.com>


[ Upstream commit 165c2357744e41391902a2a72dd170beb60c28d5 ]

Properly stop any work we may have queued on probe-errors / remove.

Rather then adding a remove driver callback for this, and goto style
error handling to probe, use a devm_action for this.

The devm_action gets registered before we register any of the extcon
notifiers which may queue the work, devm does cleanup in reverse order,
so this ensures that the notifiers are removed before we cancel the work.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/power/supply/axp288_charger.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

--- a/drivers/power/supply/axp288_charger.c
+++ b/drivers/power/supply/axp288_charger.c
@@ -785,6 +785,14 @@ static int charger_init_hw_regs(struct a
 	return 0;
 }
 
+static void axp288_charger_cancel_work(void *data)
+{
+	struct axp288_chrg_info *info = data;
+
+	cancel_work_sync(&info->otg.work);
+	cancel_work_sync(&info->cable.work);
+}
+
 static int axp288_charger_probe(struct platform_device *pdev)
 {
 	int ret, i, pirq;
@@ -836,6 +844,11 @@ static int axp288_charger_probe(struct p
 		return ret;
 	}
 
+	/* Cancel our work on cleanup, register this before the notifiers */
+	ret = devm_add_action(dev, axp288_charger_cancel_work, info);
+	if (ret)
+		return ret;
+
 	/* Register for extcon notification */
 	INIT_WORK(&info->cable.work, axp288_charger_extcon_evt_worker);
 	info->cable.nb[0].notifier_call = axp288_charger_handle_cable0_evt;


Patches currently in stable-queue which might be from hdegoede@redhat.com are

queue-4.15/serdev-fix-serdev_uevent-failure-on-acpi-enumerated-serdev-controllers.patch
queue-4.15/acpi-video-default-lcd_only-to-true-on-win8-ready-and-newer-machines.patch
queue-4.15/bluetooth-hci_bcm-mandate-presence-of-shutdown-and-device-wake-gpio.patch
queue-4.15/input-goodix-disable-irqs-while-suspended.patch
queue-4.15/asoc-intel-cht_bsw_rt5645-analog-mic-support.patch
queue-4.15/power-supply-axp288_charger-properly-stop-work-on-probe-error-remove.patch
queue-4.15/pinctrl-baytrail-enable-glitch-filter-for-gpios-used-as-interrupts.patch