From e370cc8640305aa2fa42b852cccd89e80c28d9a0 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Fri, 29 Jul 2016 17:08:41 +0200 Subject: [PATCH] ACPI / button: remove pointer to old lid_sysfs on unbind When we removed the procfs dir on error or if the driver is unbound, the two variables acpi_lid_dir and acpi_button_dir were not reset. On the next rebind, those static variables were not null and we couldn't re-register the device again. Signed-off-by: Benjamin Tissoires Acked-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/button.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index 148f4e5ca104..31abb0bdd4f2 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -232,8 +232,10 @@ remove_dev_dir: acpi_device_dir(device) = NULL; remove_lid_dir: remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir); + acpi_lid_dir = NULL; remove_button_dir: remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); + acpi_button_dir = NULL; goto done; } @@ -250,7 +252,9 @@ static int acpi_button_remove_fs(struct acpi_device *device) acpi_lid_dir); acpi_device_dir(device) = NULL; remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir); + acpi_lid_dir = NULL; remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); + acpi_button_dir = NULL; return 0; } -- 2.20.1