rtl88x2CE_WiFi_linux driver

hc

2024-05-10 cde9070d9970eef1f7ec2360586c802a16230ad8

 kernel/drivers/mfd/fsl-imx25-tsadc.c
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@@ -1,9 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright (C) 2014-2015 Pengutronix, Markus Pargmann <mpa@pengutronix.de>
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- *
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- * This program is free software; you can redistribute it and/or modify it under
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- * the terms of the GNU General Public License version 2 as published by the
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- * Free Software Foundation.
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  */
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5
 
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 #include <linux/clk.h>
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@@ -72,10 +69,8 @@
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 	int irq;
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 	irq = platform_get_irq(pdev, 0);
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-	if (irq <= 0) {
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-		dev_err(dev, "Failed to get irq\n");
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+	if (irq < 0)
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 		return irq;
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-	}
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 	tsadc->domain = irq_domain_add_simple(np, 2, 0, &mx25_tsadc_domain_ops,
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 					      tsadc);
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@@ -85,6 +80,19 @@
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 	}
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 	irq_set_chained_handler_and_data(irq, mx25_tsadc_irq_handler, tsadc);
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+
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+	return 0;
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+}
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+
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+static int mx25_tsadc_unset_irq(struct platform_device *pdev)
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+{
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+	struct mx25_tsadc *tsadc = platform_get_drvdata(pdev);
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+	int irq = platform_get_irq(pdev, 0);
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+
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+	if (irq >= 0) {
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+		irq_set_chained_handler_and_data(irq, NULL, NULL);
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+		irq_domain_remove(tsadc->domain);
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+	}
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 	return 0;
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 }
..
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@@ -176,18 +184,21 @@
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184
 
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 	platform_set_drvdata(pdev, tsadc);
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-	return devm_of_platform_populate(dev);
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+	ret = devm_of_platform_populate(dev);
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+	if (ret)
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+		goto err_irq;
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+
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+	return 0;
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+
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+err_irq:
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+	mx25_tsadc_unset_irq(pdev);
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+
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+	return ret;
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 }
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 static int mx25_tsadc_remove(struct platform_device *pdev)
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 {
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-	struct mx25_tsadc *tsadc = platform_get_drvdata(pdev);
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-	int irq = platform_get_irq(pdev, 0);
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-
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-	if (irq) {
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-		irq_set_chained_handler_and_data(irq, NULL, NULL);
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-		irq_domain_remove(tsadc->domain);
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-	}
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+	mx25_tsadc_unset_irq(pdev);
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 	return 0;
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 }