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>
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@ -514,7 +514,7 @@ static int acpi_aml_open(struct inode *inode, struct file *file)
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if (ACPI_FAILURE(status)) {
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pr_err("Failed to initialize debugger.\n");
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ret = -EINVAL;
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goto err_lock;
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goto err_exit;
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}
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pr_debug("Debugger thread initialized.\n");
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@ -531,6 +531,7 @@ err_lock:
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acpi_aml_active_reader = NULL;
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}
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mutex_unlock(&acpi_aml_io.lock);
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err_exit:
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return ret;
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}
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