rtl8814au芯片usb无线网卡移植到内核4.19上,一插上无线网卡,内核就崩溃

usb 1-1: new high-speed USB device number 2 using ehci-platform
[  357.658935] usb 1-1: New USB device found, idVendor=0bda, idProduct=8813, bcdDevice= 0.00
[  357.658967] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  357.658976] usb 1-1: Product: 802.11ac NIC
[  357.658983] usb 1-1: Manufacturer: Realtek
[  357.658992] usb 1-1: SerialNumber: 123456
[  358.018150] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[  358.026305] pgd = 2ec7b814
[  358.029075] [00000000] *pgd=00000000
[  358.032717] Internal error: Oops: 817 [#1] PREEMPT SMP ARM
[  358.038217] Modules linked in: rtl8814au(O) lt8618(O) lontium_lt9611(O) lens_ctl(O) galcore(O)
[  358.046855] CPU: 0 PID: 45 Comm: kworker/0:1 Tainted: G           O      4.19.111 #10
[  358.054691] Hardware name: Generic DT based system
[  358.059505] Workqueue: usb_hub_wq hub_event
[  358.063721] PC is at memcpy+0xb4/0x330
[  358.067497] LR is at 0xddefa540
[  358.070665] pc : [<b08b9d74>]    lr : [<ddefa540>]    psr: 000d0053
[  358.076952] sp : eebf7b1c  ip : 0000001c  fp : 000002c2
[  358.082189] r10: ee817b0c  r9 : eda77c78  r8 : f19b3c48
[  358.087427] r7 : 00000000  r6 : ed037800  r5 : f19b3cf8  r4 : f19b1000
[  358.093968] r3 : 00000000  r2 : ffffffe6  r1 : f19b5438  r0 : 00000000
[  358.100515] Flags: nzcv  IRQs on  FIQs off  Mode SVC_32  ISA ARM  Segment user
[  358.107748] Control: 10c5387d  Table: 3d13006a  DAC: 00000055

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