Hi Matt, [auto build test ERROR on linuxtv-media/master] [also build test ERROR on v4.9-rc4 next-20161028] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Matt-Ranostay/media-i2c-polling-add-i2c-polling-driver/20161107-092444 base: git://linuxtv.org/media_tree.git master config: x86_64-randconfig-x017-11071730 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All error/warnings (new ones prefixed by >>): drivers/media/i2c/i2c-polling.c: In function 'i2c_polling_probe': >> drivers/media/i2c/i2c-polling.c:379:9: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] data = kzalloc(sizeof(*data), GFP_KERNEL); ^~~~~~~ >> drivers/media/i2c/i2c-polling.c:379:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] data = kzalloc(sizeof(*data), GFP_KERNEL); ^ >> drivers/media/i2c/i2c-polling.c:432:2: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration] kfree(data); ^~~~~ cc1: some warnings being treated as errors vim +/kzalloc +379 drivers/media/i2c/i2c-polling.c 373 { 374 struct i2c_polling_data *data; 375 struct v4l2_device *v4l2_dev; 376 struct vb2_queue *queue; 377 int ret; 378 > 379 data = kzalloc(sizeof(*data), GFP_KERNEL); 380 if (!data) 381 return -ENOMEM; 382 383 data->chip = &i2c_polling_chips[id->driver_data]; 384 data->client = client; 385 data->last_update = jiffies; 386 v4l2_dev = &data->v4l2_dev; 387 strlcpy(v4l2_dev->name, I2C_POLLING_DRIVER, sizeof(v4l2_dev->name)); 388 389 ret = v4l2_device_register(&client->dev, v4l2_dev); 390 if (ret < 0) 391 goto error_free_device; 392 393 mutex_init(&data->lock); 394 mutex_init(&data->queue_lock); 395 396 queue = &data->vb_vidq; 397 queue->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 398 queue->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; 399 queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 400 queue->drv_priv = data; 401 queue->ops = &i2c_polling_video_qops; 402 queue->mem_ops = &vb2_vmalloc_memops; 403 404 ret = vb2_queue_init(queue); 405 if (ret < 0) 406 goto error_free_device; 407 408 data->vdev.queue = queue; 409 data->vdev.queue->lock = &data->queue_lock; 410 411 strlcpy(data->vdev.name, "I2C Polling Video", sizeof(data->vdev.name)); 412 413 data->vdev.v4l2_dev = v4l2_dev; 414 data->vdev.fops = &i2c_polling_fops; 415 data->vdev.lock = &data->lock; 416 data->vdev.ioctl_ops = &i2c_polling_ioctl_ops; 417 data->vdev.release = video_device_release_empty; 418 419 video_set_drvdata(&data->vdev, data); 420 i2c_set_clientdata(client, data); 421 422 ret = video_register_device(&data->vdev, VFL_TYPE_GRABBER, -1); 423 if (ret < 0) 424 goto error_unregister_device; 425 426 return 0; 427 428 error_unregister_device: 429 v4l2_device_unregister(v4l2_dev); 430 431 error_free_device: > 432 kfree(data); 433 434 return ret; 435 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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