Re: [PATCH 6/9] media: rcar_drif.c: set lock before calling vb2_queue_init()

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On 09/09/2024 16:51, Laurent Pinchart wrote:
> Hi Hans,
> 
> Thank you for the patch.
> 
> On Mon, Sep 02, 2024 at 04:04:52PM +0200, Hans Verkuil wrote:
>> The vb2_queue_init() will expect the vb2_queue lock pointer to be set in
>> the future. So for those drivers that set the lock later, move it up to
>> before the vb2_queue_init() call.
> 
> The commit message doesn't match the change below, you're moving the
> lock down, not up.

Actually, I am moving it up, as in 'set earlier', but in this case it is
a bit confusing in the patch.

Regards,

	Hans

> 
>> Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
>> Cc: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@xxxxxxxxxxxxxx>
>> Cc: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>
>> ---
>>  drivers/media/platform/renesas/rcar_drif.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/media/platform/renesas/rcar_drif.c b/drivers/media/platform/renesas/rcar_drif.c
>> index f21d05054341..5d3109940ded 100644
>> --- a/drivers/media/platform/renesas/rcar_drif.c
>> +++ b/drivers/media/platform/renesas/rcar_drif.c
>> @@ -1071,7 +1071,6 @@ static int rcar_drif_sdr_register(struct rcar_drif_sdr *sdr)
>>  	sdr->vdev->release = video_device_release;
>>  	sdr->vdev->lock = &sdr->v4l2_mutex;
>>  	sdr->vdev->queue = &sdr->vb_queue;
>> -	sdr->vdev->queue->lock = &sdr->vb_queue_mutex;
>>  	sdr->vdev->ctrl_handler = &sdr->ctrl_hdl;
>>  	sdr->vdev->v4l2_dev = &sdr->v4l2_dev;
>>  	sdr->vdev->device_caps = V4L2_CAP_SDR_CAPTURE | V4L2_CAP_TUNER |
>> @@ -1316,6 +1315,7 @@ static int rcar_drif_sdr_probe(struct rcar_drif_sdr *sdr)
>>  	sdr->vb_queue.ops = &rcar_drif_vb2_ops;
>>  	sdr->vb_queue.mem_ops = &vb2_vmalloc_memops;
>>  	sdr->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
>> +	sdr->vb_queue.lock = &sdr->vb_queue_mutex;
>>  
>>  	/* Init videobuf2 queue */
>>  	ret = vb2_queue_init(&sdr->vb_queue);
> 





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