From: Lv Zheng <lv.zheng@intel.com>
To: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Len Brown <len.brown@intel.com>
Cc: Lv Zheng <lv.zheng@intel.com>, Lv Zheng <zetalog@gmail.com>,
<linux-kernel@vger.kernel.org>,
linux-acpi@vger.kernel.org,
"David E. Box" <david.e.box@linux.intel.com>,
Bob Moore <robert.moore@intel.com>
Subject: [PATCH 05/10] ACPICA: Events: Cleanup of resetting the GPE handler to NULL before removing.
Date: Thu, 5 Feb 2015 15:20:14 +0800 [thread overview]
Message-ID: <03498d3612bdc7d67feb473f89de2beb88f65944.1423119574.git.lv.zheng@intel.com> (raw)
In-Reply-To: <cover.1423119574.git.lv.zheng@intel.com>
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 <lv.zheng@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
---
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 55a58f3..b6b0c23 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 */
--
1.7.10
next prev parent reply other threads:[~2015-02-05 7:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-05 7:19 [PATCH 00/10] ACPICA: 20150204 Release Lv Zheng
2015-02-05 7:19 ` [PATCH 01/10] ACPICA: Events: Back port "ACPICA: Save current masks of enabled GPEs after enable register writes" Lv Zheng
2015-02-05 7:19 ` [PATCH 02/10] ACPICA: Events: Remove duplicated sanity check in acpi_ev_enable_gpe() Lv Zheng
2015-02-05 7:20 ` [PATCH 03/10] ACPICA: Events: Remove acpi_ev_valid_gpe_event() due to current restriction Lv Zheng
2015-02-05 7:20 ` [PATCH 04/10] ACPICA: Events: Fix uninitialized variable Lv Zheng
2015-02-05 7:20 ` Lv Zheng [this message]
2015-02-05 7:20 ` [PATCH 06/10] ACPICA: Events: Cleanup to move acpi_gbl_global_event_handler invocation out of acpi_ev_gpe_dispatch() Lv Zheng
2015-02-05 7:20 ` [PATCH 07/10] ACPICA: Events: Cleanup GPE dispatcher type obtaining code Lv Zheng
2015-02-05 7:20 ` [PATCH 08/10] ACPICA: Hardware: Cast GPE enable_mask before storing Lv Zheng
2015-02-05 7:20 ` [PATCH 09/10] ACPICA: Update Copyright headers to 2015 Lv Zheng
2015-02-05 7:20 ` [PATCH 10/10] ACPICA: Update version to 20150204 Lv Zheng
2015-02-05 15:18 ` [PATCH 00/10] ACPICA: 20150204 Release Rafael J. Wysocki
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