4.18-stable review patch. If anyone has any objections, please let me know.
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From: Karol Herbst karolherbst@gmail.com
[ Upstream commit eaeb9010bb4bcdc20e58254fa42f3fe730a7f908 ]
Fixes various reclocking related issues on prime systems.
Signed-off-by: Karol Herbst karolherbst@gmail.com Signed-off-by: Martin Peres martin.peres@free.fr Signed-off-by: Ben Skeggs bskeggs@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/nouveau/nouveau_debugfs.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c +++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c @@ -160,7 +160,11 @@ nouveau_debugfs_pstate_set(struct file * args.ustate = value; }
+ ret = pm_runtime_get_sync(drm->dev); + if (IS_ERR_VALUE(ret) && ret != -EACCES) + return ret; ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_USER, &args, sizeof(args)); + pm_runtime_put_autosuspend(drm->dev); if (ret < 0) return ret;