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authorBen Skeggs <bskeggs@redhat.com>2017-12-23 08:54:28 +1000
committerBen Skeggs <bskeggs@redhat.com>2017-12-23 08:56:59 +1000
commitb26a2319be3dd26edb3013504992a037a5902520 (patch)
tree06a2459912091f94952ccc308a89143a32d42d0f /drivers/gpu
parent4ef928929987c19fff4d3c1650f139560ba1cc13 (diff)
drm/nouveau: fix race when adding delayed work items
kernel.org bz#198221. Reported-by: Petr Vandrovec <petr@vandrovec.name> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 8d4a5be3b913..56fe261b6268 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -152,9 +152,9 @@ nouveau_cli_work_queue(struct nouveau_cli *cli, struct dma_fence *fence,
work->cli = cli;
mutex_lock(&cli->lock);
list_add_tail(&work->head, &cli->worker);
- mutex_unlock(&cli->lock);
if (dma_fence_add_callback(fence, &work->cb, nouveau_cli_work_fence))
nouveau_cli_work_fence(fence, &work->cb);
+ mutex_unlock(&cli->lock);
}
static void