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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>
This commit is contained in:
Lv Zheng 2015-12-24 14:16:26 +08:00 committed by Rafael J. Wysocki
parent 836d083018
commit 73af2d590a
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/acpi_dbg.c
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@ -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");