On Fri, Oct 09, 2020 at 05:56:09PM -0700, syzbot wrote: > Hello, > > syzbot tried to test the proposed patch but the build/boot failed: Oops. One more try, with the typos fixed. #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git v5.9-rc8 Index: usb-devel/drivers/net/wireless/ath/ath9k/hif_usb.c =================================================================== --- usb-devel.orig/drivers/net/wireless/ath/ath9k/hif_usb.c +++ usb-devel/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -1307,6 +1307,20 @@ static int ath9k_hif_usb_probe(struct us struct usb_device *udev = interface_to_usbdev(interface); struct hif_device_usb *hif_dev; int ret = 0; + struct usb_host_interface *alt; + struct usb_endpoint_descriptor *epd; + + /* Verify the expected endpoints are present */ + alt = interface->cur_altsetting; + if (!usb_find_int_in_endpoint(alt, &epd) || + usb_endpoint_num(epd) != USB_REG_IN_PIPE || + !usb_find_int_out_endpoint(alt, &epd) || + usb_endpoint_num(epd) != USB_REG_OUT_PIPE || + !usb_find_bulk_in_endpoint(alt, &epd) || + usb_endpoint_num(epd) != USB_WLAN_RX_PIPE || + !usb_find_bulk_out_endpoint(alt, &epd) || + usb_endpoint_num(epd) != USB_WLAN_TX_PIPE) + return -ENODEV; if (id->driver_info == STORAGE_DEVICE) return send_eject_command(interface);
