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(parent: 470db8b) | patch
drm/nouveau: remove fence wait code from deferred client work handler
authorBen Skeggs <bskeggs@redhat.com>
Tue, 8 May 2018 10:39:47 +0000 (20:39 +1000)
committerBen Skeggs <bskeggs@redhat.com>
Fri, 18 May 2018 05:01:26 +0000 (15:01 +1000)
commit11e451e74050d9e9030581ce40337838acfcea5b
tree200eba83b3ca907857dae1ca4ef9534c0c148a3btree | snapshot
parent470db8b78186efe840b6452c6c4934178058059ecommit | diff
drm/nouveau: remove fence wait code from deferred client work handler

Fences attached to deferred client work items now originate from channels
belonging to the client, meaning we can be certain they've been signalled
before we destroy a client.

This closes a race that could happen if the dma_fence_wait_timeout() call
didn't succeed.  When the fence was later signalled, a use-after-free was
possible.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/nouveau_drm.c diff | blob | history
Domain: System / Kernel;