From c539251e7c1537c8b3dcaa1c89f5393d04996013 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Thu, 5 Feb 2015 15:20:14 +0800 Subject: [PATCH] ACPICA: Events: Cleanup of resetting the GPE handler to NULL before removing ACPICA commit b2b18bb38045404e253f10787b8a4ae6e94cdee6 This patch prevents acpi_remove_gpe_handler() from leaking the stale gpe_event_info->Dispatch.Handler to the caller to avoid possible NULL pointer references. Lv Zheng. Link: https://github.com/acpica/acpica/commit/b2b18bb3 Signed-off-by: Lv Zheng Signed-off-by: David E. Box Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/evxface.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index 55a58f3ec8df..b6b0c2341d29 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -896,6 +896,7 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, /* Remove the handler */ handler = gpe_event_info->dispatch.handler; + gpe_event_info->dispatch.handler = NULL; /* Restore Method node (if any), set dispatch flags */ -- 2.20.1