Re: [PATCH v2] HID: magicmouse: fix crash when disconnecting Magic Trackpad 2

From: Jiri Kosina
Date: Wed May 26 2021 - 06:44:46 EST


On Mon, 10 May 2021, José Expósito wrote:

> When the Apple Magic Trackpad 2 is connected over USB it registers four
> hid_device report descriptors, however, the driver only handles the one
> with type HID_TYPE_USBMOUSE and ignores the other three, thus, no driver
> data is attached to them.
>
> When the device is disconnected, the remove callback is called for the
> four hid_device report descriptors, crashing when the driver data is
> NULL.
>
> Check that the driver data is not NULL before using it in the remove
> callback.

Applied, thank you.

--
Jiri Kosina
SUSE Labs