From: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx> commit 79199002db5c571e335131856b3ff057ffd9f3c0 upstream. In case the completion function failes, unbind will be called which will call cancel_work for awb_work. This will trigger a WARN message from the workqueue. To avoid this, move the INIT_WORK call at the start of the completion function. This way the work is always initialized, which corresponds to the 'always canceled' unbind code. Fixes: 93d4a26c3d ("[media] atmel-isc: add the isc pipeline function") Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx> Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx> Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/media/platform/atmel/atmel-isc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/media/platform/atmel/atmel-isc.c +++ b/drivers/media/platform/atmel/atmel-isc.c @@ -1895,6 +1895,8 @@ static int isc_async_complete(struct v4l struct vb2_queue *q = &isc->vb2_vidq; int ret; + INIT_WORK(&isc->awb_work, isc_awb_work); + ret = v4l2_device_register_subdev_nodes(&isc->v4l2_dev); if (ret < 0) { v4l2_err(&isc->v4l2_dev, "Failed to register subdev nodes\n"); @@ -1948,8 +1950,6 @@ static int isc_async_complete(struct v4l return ret; } - INIT_WORK(&isc->awb_work, isc_awb_work); - /* Register video device */ strlcpy(vdev->name, ATMEL_ISC_NAME, sizeof(vdev->name)); vdev->release = video_device_release_empty;