tree 1713ba58c5b60a82c88e70eda64fef052fd85ead
parent 139295b671ff4ccd904f2fa58e9dbc0fe99cc7fe
author Luca Barbieri <luca@luca-barbieri.com> 1264890098 +0100
committer Ben Skeggs <bskeggs@redhat.com> 1265683749 +1000

drm/nouveau: call ttm_bo_wait with the bo lock held to prevent hang

nouveau_gem_ioctl_cpu_prep calls ttm_bo_wait without the bo lock held.
ttm_bo_wait unlocks that lock, and so must be called with it held.

Currently this bug causes libdrm nouveau_bo_busy() to hang the machine.

Signed-off-by: Luca Barbieri <luca at luca-barbieri.com>
Acked-by: Maarten Maathuis <madman2003@gmail.com>
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>