xorg-server blocks on /dev/sysmouse

[Maxim Ignatenko]

Hello -x11@,

I have xorg-server with staticaly configured input 
devices (USB mouse configured via sysmouse+moused). 
Sometimes picture and all GUI threads of running 
processes freezes until I move mouse. This issue appeared 
long time ago (I've noticed it more than year ago 
http://juick.com/gelraen/966367 (russian)), but I'm 
reporting it only now, sorry :(

This patch seems to solve the problem: 
http://paste.org.ru/?rgm0m6

This patch does the same, but for xorg-server 1.10.6: 
http://dpaste.com/707312/