[PATCH 25/81] drm/radeon: prevent crash in the ring space allocation

3.5.7.6 -stable review patch. If anyone has any objections, please let me know. -- From: Alex Deucher commit fd5d93a0015ce1a7db881382022b2fcdfdc61760 upstream. If the requested number of DWs on the ring is larger than the size of the ring itself, return an error. In testing

[PATCH 25/81] drm/radeon: prevent crash in the ring space allocation

3.5.7.6 -stable review patch. If anyone has any objections, please let me know. -- From: Alex Deucher alexander.deuc...@amd.com commit fd5d93a0015ce1a7db881382022b2fcdfdc61760 upstream. If the requested number of DWs on the ring is larger than the size of the ring itself,