From 73af2d590ab1b7bc7c3fc3e6933d5dcd379c9c2e Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 24 Dec 2015 14:16:26 +0800
Subject: ACPI / debugger: Fix an issue a flag is modified without locking

There is one line of code, executed out of locking due to rebase mistakes.
This patch fixes this issue.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpi_dbg.c b/drivers/acpi/acpi_dbg.c
index 381beb2..fa18bd0 100644
--- a/drivers/acpi/acpi_dbg.c
+++ b/drivers/acpi/acpi_dbg.c
@@ -516,10 +516,10 @@ static int acpi_aml_open(struct inode *inode, struct file *file)
 			ret = -EINVAL;
 			goto err_lock;
 		}
-		acpi_aml_io.flags |= ACPI_AML_OPENED;
 		pr_debug("Debugger thread initialized.\n");
 
 		mutex_lock(&acpi_aml_io.lock);
+		acpi_aml_io.flags |= ACPI_AML_OPENED;
 		acpi_aml_io.out_crc.head = acpi_aml_io.out_crc.tail = 0;
 		acpi_aml_io.in_crc.head = acpi_aml_io.in_crc.tail = 0;
 		pr_debug("Debugger interface opened.\n");
-- 
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