Merge branch 'linux-4.12' of git://github.com/skeggsb/linux into drm-fixes

misc nouveau fixes.

* 'linux-4.12' of git://github.com/skeggsb/linux:
drm/nouveau/fifo/gk104-: Silence a locking warning
drm/nouveau/secboot: plug memory leak in ls_ucode_img_load_gr() error path
drm/nouveau: Fix drm poll_helper handling

drivers/gpu/drm/nouveau/nouveau_display.c

···
 	pm_runtime_get_sync(drm->dev->dev);
 
 	drm_helper_hpd_irq_event(drm->dev);
+	/* enable polling for external displays */
+	drm_kms_helper_poll_enable(drm->dev);
 
 	pm_runtime_mark_last_busy(drm->dev->dev);
 	pm_runtime_put_sync(drm->dev->dev);
···
 	ret = disp->init(dev);
 	if (ret)
 		return ret;
-
-	/* enable polling for external displays */
-	if (!dev->mode_config.poll_enabled)
-		drm_kms_helper_poll_enable(dev);
 
 	/* enable hotplug interrupts */
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {

drivers/gpu/drm/nouveau/nouveau_drm.c

···
 		pm_runtime_allow(dev->dev);
 		pm_runtime_mark_last_busy(dev->dev);
 		pm_runtime_put(dev->dev);
+	} else {
+		/* enable polling for external displays */
+		drm_kms_helper_poll_enable(dev);
 	}
 	return 0;
 
···
 	pci_set_master(pdev);
 
 	ret = nouveau_do_resume(drm_dev, true);
-
-	if (!drm_dev->mode_config.poll_enabled)
-		drm_kms_helper_poll_enable(drm_dev);
 
 	/* do magic */
 	nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c

···
 	case NVKM_MEM_TARGET_NCOH: target = 3; break;
 	default:
 		WARN_ON(1);
-		return;
+		goto unlock;
 	}
 
 	nvkm_wr32(device, 0x002270, (nvkm_memory_addr(mem) >> 12) |
···
 				       & 0x00100000),
 			       msecs_to_jiffies(2000)) == 0)
 		nvkm_error(subdev, "runlist %d update timeout\n", runl);
+unlock:
 	mutex_unlock(&subdev->mutex);
 }
 

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode_gr.c

···
 	ret = nvkm_firmware_get(subdev->device, f, &sig);
 	if (ret)
 		goto free_data;
+
 	img->sig = kmemdup(sig->data, sig->size, GFP_KERNEL);
 	if (!img->sig) {
 		ret = -ENOMEM;
···
 	img->ucode_data = ls_ucode_img_build(bl, code, data,
 					     &img->ucode_desc);
 	if (IS_ERR(img->ucode_data)) {
+		kfree(img->sig);
 		ret = PTR_ERR(img->ucode_data);
-		goto free_data;
+		goto free_sig;
 	}
 	img->ucode_size = img->ucode_desc.image_size;