From: Bjørn Mork <bjorn@xxxxxxx>
Date: Mon, 6 Nov 2017 15:32:18 +0100
> A CDC Ethernet functional descriptor with wMaxSegmentSize = 0 will
> cause a divide error in usbnet_probe:
>
> divide error: 0000 [#1] PREEMPT SMP KASAN
...
> Fix by simply ignoring the bogus descriptor, as it is optional
> for QMI devices anyway.
>
> Fixes: 423ce8caab7e ("net: usb: qmi_wwan: New driver for Huawei QMI based WWAN devices")
> Reported-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
> Signed-off-by: Bjørn Mork <bjorn@xxxxxxx>
Applied and queued up for -stable.
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