@@ -92,8 +92,8 @@ module_param(only_lcd, bool, 0444);
static int register_count;
static DEFINE_MUTEX(register_count_mutex);
-static struct mutex video_list_lock;
-static struct list_head video_bus_head;
+static DEFINE_MUTEX(video_list_lock);
+static LIST_HEAD(video_bus_head);
static int acpi_video_bus_add(struct acpi_device *device);
static int acpi_video_bus_remove(struct acpi_device *device);
static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
@@ -2067,9 +2067,6 @@ int acpi_video_register(void)
goto leave;
}
- mutex_init(&video_list_lock);
- INIT_LIST_HEAD(&video_bus_head);
-
dmi_check_system(video_dmi_table);
ret = acpi_bus_register_driver(&acpi_video_bus);
If acpi_video_handles_brightness_key_presses() was called before acpi_video_register(), it would use the video_list mutex / list_head uninitialized. This patch fixes this by using DEFINE_MUTEX / LIST_HEAD when declaring these, instead of initializing them runtime from acpi_video_register(). Signed-off-by: Hans de Goede <hdegoede@redhat.com> --- drivers/acpi/acpi_video.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)