ACPI / debugger: Fix a redundant mutex unlock issue in acpi_aml_open()
Fix a double mutex_unlock() issue where acpi_initialize_debugger() is
called with the mutex already unlocked.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
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 e8d1698..15e4604 100644
--- a/drivers/acpi/acpi_dbg.c
+++ b/drivers/acpi/acpi_dbg.c
@@ -514,7 +514,7 @@
if (ACPI_FAILURE(status)) {
pr_err("Failed to initialize debugger.\n");
ret = -EINVAL;
- goto err_lock;
+ goto err_exit;
}
pr_debug("Debugger thread initialized.\n");
@@ -531,6 +531,7 @@
acpi_aml_active_reader = NULL;
}
mutex_unlock(&acpi_aml_io.lock);
+err_exit:
return ret;
}
