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hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/mfd/pcf50633-adc.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /* NXP PCF50633 ADC Driver
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  *
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  * (C) 2006-2008 by Openmoko, Inc.
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@@ -6,11 +7,6 @@
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  *
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  * Broken down from monstrous PCF50633 driver mainly by
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  * Harald Welte, Andy Green and Werner Almesberger
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- *
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- *  This program is free software; you can redistribute  it and/or modify it
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- *  under  the terms of  the GNU General  Public License as published by the
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- *  Free Software Foundation;  either version 2 of the  License, or (at your
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- *  option) any later version.
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  *
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  *  NOTE: This driver does not yet support subtractive ADC mode, which means
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  *  you can do only one measurement per read request.
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@@ -140,6 +136,7 @@
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 			     void *callback_param)
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 {
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 	struct pcf50633_adc_request *req;
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+	int ret;
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 	/* req is freed when the result is ready, in interrupt handler */
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 	req = kmalloc(sizeof(*req), GFP_KERNEL);
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@@ -151,7 +148,11 @@
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 	req->callback = callback;
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 	req->callback_param = callback_param;
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-	return adc_enqueue_request(pcf, req);
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+	ret = adc_enqueue_request(pcf, req);
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+	if (ret)
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+		kfree(req);
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+
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+	return ret;
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 }
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 EXPORT_SYMBOL_GPL(pcf50633_adc_async_read);
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