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 @@
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");