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https://github.com/edk2-porting/linux-next.git
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7f2b019c8d
Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Valentina Manea <valentina.manea.m@gmail.com> Acked-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
102 lines
2.3 KiB
C
102 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2015 Karol Kosik <karo9@interia.eu>
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* Copyright (C) 2015-2016 Samsung Electronics
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* Igor Kotrasinski <i.kotrasinsk@samsung.com>
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* Krzysztof Opasiak <k.opasiak@samsung.com>
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*/
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#include <linux/device.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include "vudc.h"
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static unsigned int vudc_number = 1;
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module_param_named(num, vudc_number, uint, S_IRUGO);
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MODULE_PARM_DESC(num, "number of emulated controllers");
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static struct platform_driver vudc_driver = {
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.probe = vudc_probe,
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.remove = vudc_remove,
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.driver = {
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.name = GADGET_NAME,
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},
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};
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static struct list_head vudc_devices = LIST_HEAD_INIT(vudc_devices);
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static int __init init(void)
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{
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int retval = -ENOMEM;
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int i;
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struct vudc_device *udc_dev = NULL, *udc_dev2 = NULL;
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if (usb_disabled())
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return -ENODEV;
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if (vudc_number < 1) {
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pr_err("Number of emulated UDC must be no less than 1");
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return -EINVAL;
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}
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retval = platform_driver_register(&vudc_driver);
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if (retval < 0)
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goto out;
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for (i = 0; i < vudc_number; i++) {
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udc_dev = alloc_vudc_device(i);
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if (!udc_dev) {
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retval = -ENOMEM;
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goto cleanup;
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}
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retval = platform_device_add(udc_dev->pdev);
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if (retval < 0) {
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put_vudc_device(udc_dev);
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goto cleanup;
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}
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list_add_tail(&udc_dev->dev_entry, &vudc_devices);
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if (!platform_get_drvdata(udc_dev->pdev)) {
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/*
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* The udc was added successfully but its probe
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* function failed for some reason.
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*/
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retval = -EINVAL;
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goto cleanup;
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}
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}
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goto out;
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cleanup:
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list_for_each_entry_safe(udc_dev, udc_dev2, &vudc_devices, dev_entry) {
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list_del(&udc_dev->dev_entry);
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platform_device_del(udc_dev->pdev);
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put_vudc_device(udc_dev);
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}
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platform_driver_unregister(&vudc_driver);
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out:
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return retval;
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}
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module_init(init);
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static void __exit cleanup(void)
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{
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struct vudc_device *udc_dev = NULL, *udc_dev2 = NULL;
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list_for_each_entry_safe(udc_dev, udc_dev2, &vudc_devices, dev_entry) {
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list_del(&udc_dev->dev_entry);
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platform_device_unregister(udc_dev->pdev);
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put_vudc_device(udc_dev);
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}
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platform_driver_unregister(&vudc_driver);
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}
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module_exit(cleanup);
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MODULE_DESCRIPTION("USB over IP Device Controller");
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MODULE_AUTHOR("Krzysztof Opasiak, Karol Kosik, Igor Kotrasinski");
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MODULE_LICENSE("GPL");
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