drm/nouveau/pmu: add nvkm_pmu_ctor() function

Add a PMU constructor so implementations that extend the nvkm_pmu
structure can have all base members properly initialized.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 12 insertions, 5 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
index e611ce80f8ef..b7edde42789c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
@@ -129,15 +129,22 @@ nvkm_pmu = {
 };
 
 int
-nvkm_pmu_new_(const struct nvkm_pmu_func *func, struct nvkm_device *device,
-	      int index, struct nvkm_pmu **ppmu)
+nvkm_pmu_ctor(const struct nvkm_pmu_func *func, struct nvkm_device *device,
+	      int index, struct nvkm_pmu *pmu)
 {
-	struct nvkm_pmu *pmu;
-	if (!(pmu = *ppmu = kzalloc(sizeof(*pmu), GFP_KERNEL)))
-		return -ENOMEM;
 	nvkm_subdev_ctor(&nvkm_pmu, device, index, &pmu->subdev);
 	pmu->func = func;
 	INIT_WORK(&pmu->recv.work, nvkm_pmu_recv);
 	init_waitqueue_head(&pmu->recv.wait);
 	return 0;
 }
+
+int
+nvkm_pmu_new_(const struct nvkm_pmu_func *func, struct nvkm_device *device,
+	      int index, struct nvkm_pmu **ppmu)
+{
+	struct nvkm_pmu *pmu;
+	if (!(pmu = *ppmu = kzalloc(sizeof(*pmu), GFP_KERNEL)))
+		return -ENOMEM;
+	return nvkm_pmu_ctor(func, device, index, *ppmu);
+}