add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/hid/hid-appleir.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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  * HID driver for the apple ir device
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  *
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@@ -12,15 +13,6 @@
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  * Copyright (C) 2010, 2012 Bastien Nocera <hadess@hadess.net>
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  * Copyright (C) 2013 Benjamin Tissoires <benjamin.tissoires@gmail.com>
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  * Copyright (C) 2013 Red Hat Inc. All Rights Reserved
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- *
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- * This software is licensed under the terms of the GNU General Public
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- * License version 2, as published by the Free Software Foundation, and
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- * may be copied, distributed, and modified under those terms.
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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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@@ -291,11 +283,9 @@
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 	int ret;
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 	struct appleir *appleir;
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-	appleir = kzalloc(sizeof(struct appleir), GFP_KERNEL);
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-	if (!appleir) {
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-		ret = -ENOMEM;
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-		goto allocfail;
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-	}
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+	appleir = devm_kzalloc(&hid->dev, sizeof(struct appleir), GFP_KERNEL);
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+	if (!appleir)
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+		return -ENOMEM;
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 	appleir->hid = hid;
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@@ -321,8 +311,7 @@
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 	return 0;
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 fail:
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-	kfree(appleir);
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-allocfail:
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+	devm_kfree(&hid->dev, appleir);
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 	return ret;
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 }
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@@ -331,7 +320,6 @@
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 	struct appleir *appleir = hid_get_drvdata(hid);
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 	hid_hw_stop(hid);
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 	del_timer_sync(&appleir->key_up_timer);
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-	kfree(appleir);
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 }
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 static const struct hid_device_id appleir_devices[] = {