]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ACPICA: Dispatcher: Fix order issue of method termination
authorLv Zheng <zetalog@gmail.com>
Wed, 26 Oct 2016 07:40:12 +0000 (15:40 +0800)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Fri, 28 Oct 2016 23:57:43 +0000 (01:57 +0200)
commit25ccd2429fd0af5b9c2c136c8c593491aeabf162
tree6e42efd5429fddba4bdaf301708c7e2b9870e8f6
parent07d9a380680d1c0eb51ef87ff2eab5c994949e69
ACPICA: Dispatcher: Fix order issue of method termination

The last step of the method termination should be the end of the method
serialization. Otherwise, the steps happening after it will face the race
issues that cannot be protected by the method serialization mechanism.

This patch fixes this issue by moving the per-method-object deletion code
prior than the end of the method serialization. Otherwise, the possible
race issues may result in AE_ALREADY_EXISTS error in a parallel
environment.

Fixes: 74f51b80a0c4 (ACPICA: Namespace: Fix dynamic table loading issues)
Reported-and-tested-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/acpica/dsmethod.c