usb: dwc2: avoid out of bounds access
[platform/kernel/u-boot.git] / drivers / usb / host / ohci-generic.c
1 /*
2  * Copyright (C) 2015 Alexey Brodkin <abrodkin@synopsys.com>
3  *
4  * SPDX-License-Identifier:     GPL-2.0+
5  */
6
7 #include <common.h>
8 #include <dm.h>
9 #include "ohci.h"
10
11 #if !defined(CONFIG_USB_OHCI_NEW)
12 # error "Generic OHCI driver requires CONFIG_USB_OHCI_NEW"
13 #endif
14
15 struct generic_ohci {
16         ohci_t ohci;
17 };
18
19 static int ohci_usb_probe(struct udevice *dev)
20 {
21         struct ohci_regs *regs = (struct ohci_regs *)dev_get_addr(dev);
22
23         return ohci_register(dev, regs);
24 }
25
26 static int ohci_usb_remove(struct udevice *dev)
27 {
28         return ohci_deregister(dev);
29 }
30
31 static const struct udevice_id ohci_usb_ids[] = {
32         { .compatible = "generic-ohci" },
33         { }
34 };
35
36 U_BOOT_DRIVER(ohci_generic) = {
37         .name   = "ohci_generic",
38         .id     = UCLASS_USB,
39         .of_match = ohci_usb_ids,
40         .probe = ohci_usb_probe,
41         .remove = ohci_usb_remove,
42         .ops    = &ohci_usb_ops,
43         .priv_auto_alloc_size = sizeof(struct generic_ohci),
44         .flags  = DM_FLAG_ALLOC_PRIV_DMA,
45 };