add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/input/misc/e3x0-button.c
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@@ -1,16 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (c) 2014, National Instruments Corp. All rights reserved.
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  *
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  * Driver for NI Ettus Research USRP E3x0 Button Driver
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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 as published by
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- * the Free Software Foundation; version 2 of the License.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU General Public License for more details.
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  */
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 #include <linux/device.h>
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@@ -73,18 +65,12 @@
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 	int error;
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 	irq_press = platform_get_irq_byname(pdev, "press");
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-	if (irq_press < 0) {
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-		dev_err(&pdev->dev, "No IRQ for 'press', error=%d\n",
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-			irq_press);
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+	if (irq_press < 0)
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 		return irq_press;
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-	}
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 	irq_release = platform_get_irq_byname(pdev, "release");
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-	if (irq_release < 0) {
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-		dev_err(&pdev->dev, "No IRQ for 'release', error=%d\n",
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-			irq_release);
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+	if (irq_release < 0)
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 		return irq_release;
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-	}
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 	input = devm_input_allocate_device(&pdev->dev);
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 	if (!input)