Patch "platform/x86: lenovo-yogabook: Reprobe devices on remove()" has been added to the 6.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

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

    platform/x86: lenovo-yogabook: Reprobe devices on remove()

to the 6.4-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:
     platform-x86-lenovo-yogabook-reprobe-devices-on-remo.patch
and it can be found in the queue-6.4 subdirectory.

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



commit 71ab5e54328557d34c971db113a758f5d8a939af
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date:   Sun Apr 30 18:57:51 2023 +0200

    platform/x86: lenovo-yogabook: Reprobe devices on remove()
    
    [ Upstream commit 711bcc0cb34e96a60e88d7b0260862781de3e530 ]
    
    Ensure that both the keyboard touchscreen and the digitizer have their
    driver bound after remove(). Without this modprobing lenovo-yogabook-wmi
    after a rmmod fails because lenovo-yogabook-wmi defers probing until
    both devices have their driver bound.
    
    Fixes: c0549b72d99d ("platform/x86: lenovo-yogabook-wmi: Add driver for Lenovo Yoga Book")
    Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230430165807.472798-4-hdegoede@xxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/platform/x86/lenovo-yogabook-wmi.c b/drivers/platform/x86/lenovo-yogabook-wmi.c
index 3a6de4ab74a41..5948ffa74acd5 100644
--- a/drivers/platform/x86/lenovo-yogabook-wmi.c
+++ b/drivers/platform/x86/lenovo-yogabook-wmi.c
@@ -332,9 +332,20 @@ static int yogabook_wmi_probe(struct wmi_device *wdev, const void *context)
 static void yogabook_wmi_remove(struct wmi_device *wdev)
 {
 	struct yogabook_wmi *data = dev_get_drvdata(&wdev->dev);
+	int r = 0;
 
 	free_irq(data->backside_hall_irq, data);
 	cancel_work_sync(&data->work);
+
+	if (!test_bit(YB_KBD_IS_ON, &data->flags))
+		r |= device_reprobe(data->kbd_dev);
+
+	if (!test_bit(YB_DIGITIZER_IS_ON, &data->flags))
+		r |= device_reprobe(data->dig_dev);
+
+	if (r)
+		dev_warn(&wdev->dev, "Reprobe of devices failed\n");
+
 	put_device(data->dig_dev);
 	put_device(data->kbd_dev);
 	acpi_dev_put(data->dig_adev);