Blue screen when unplugging a composite USB device.

Submitted by Dean

Assigned to Hans de Goede @jwrdegoede

Software environment: spice-gtk-0.27 usbredir-0.7

Steps to reproduce this bug:

Redirect a composite USB device to remote desktop, for example, an Android mobile phone.
When the phone appeared in the remote desktop, unplug the phone from local machine.
Then, the windows crashed, and turns to blue screen.

Please take a look at this bug.