Radeon rv250 GPU acceleration broken in 4.15-rc6

[Meelis Roos]

> Beacuse of PTI, I decided to test 4.15-rc6 on most of my test machines. 
> And I happened to notice a radeon problem on RV250 era card with no 
> monitor attached. 4.15-rc1 and earlier kernels did not show these 
> errors, not kernels between rc1 and rc6 have been tested yet.

Sorry, I can not reproduce it, so it looks like random noise from an old 
computer. About 10 reboots later, I have not managed to reproduce this 
problem.

-- 
Meelis Roos (mroos at linux.ee)