From 031ec77bf67e4bda994ef8ceba267be3295ffdb7 Mon Sep 17 00:00:00 2001 From: Karol Kozimor Date: Sat, 30 Jul 2005 04:18:00 -0400 Subject: [PATCH] [ACPI] acpi_remove_notify_handler() on video driver unload The video driver doesn't properly remove all the notify handlers on module unload. This has a side effect of subdevices failing to register on module reload, but sudden death looms if the handlers trigger after the module is unloaded. Signed-off-by: Karol Kozimor Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/acpi/video.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 2cf264fd52e..7b10a7b070c 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -1665,6 +1665,7 @@ static int acpi_video_bus_put_one_device( struct acpi_video_device *device) { + acpi_status status; struct acpi_video_bus *video; ACPI_FUNCTION_TRACE("acpi_video_bus_put_one_device"); @@ -1679,6 +1680,12 @@ acpi_video_bus_put_one_device( up(&video->sem); acpi_video_device_remove_fs(device->dev); + status = acpi_remove_notify_handler(device->handle, + ACPI_DEVICE_NOTIFY, acpi_video_device_notify); + if (ACPI_FAILURE(status)) + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error removing notify handler\n")); + return_VALUE(0); } -- 2.20.1