Since a new class has been introduced to query signals, we can now
return an error when the userspace wants to monitor unknown signals.
Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
drm/nouveau/nvkm/engine/pm/base.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drm/nouveau/nvkm/engine/pm/base.c
b/drm/nouveau/nvkm/engine/pm/base.c
index cb88170..2f85147 100644
--- a/drm/nouveau/nvkm/engine/pm/base.c
+++ b/drm/nouveau/nvkm/engine/pm/base.c
@@ -294,6 +294,9 @@ nvkm_perfctr_ctor(struct nvkm_object *parent, struct
nvkm_object *engine,
return -EINVAL;
}
+ if (!dom)
+ return -EINVAL;
+
ret = nvkm_object_create(parent, engine, oclass, 0, &ctr);
*pobject = nv_object(ctr);
if (ret)
@@ -305,8 +308,7 @@ nvkm_perfctr_ctor(struct nvkm_object *parent, struct
nvkm_object *engine,
ctr->signal[1] = sig[1];
ctr->signal[2] = sig[2];
ctr->signal[3] = sig[3];
- if (dom)
- list_add_tail(&ctr->head, &dom->list);
+ list_add_tail(&ctr->head, &dom->list);
return 0;
}
--
2.4.2
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