add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/input/keyboard/st-keyscan.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * STMicroelectronics Key Scanning driver
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  *
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@@ -5,10 +6,6 @@
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  * Author: Stuart Menefy <stuart.menefy@st.com>
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  *
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  * Based on sh_keysc.c, copyright 2008 Magnus Damm
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/module.h>
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@@ -190,10 +187,8 @@
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 	keyscan_stop(keypad_data);
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 	keypad_data->irq = platform_get_irq(pdev, 0);
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-	if (keypad_data->irq < 0) {
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-		dev_err(&pdev->dev, "no IRQ specified\n");
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+	if (keypad_data->irq < 0)
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 		return -EINVAL;
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-	}
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 	error = devm_request_irq(&pdev->dev, keypad_data->irq, keyscan_isr, 0,
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 				 pdev->name, keypad_data);