Re: [PATCH 3/5] media: ipu6: Prevent starting streaming if ISYS needs reset

[Antti Laakso <antti.laakso@linux.intel.com>]

On Thu, Oct 08, 2026 at 11:52:45AM +0300, Sakari Ailus wrote:
> Fail starting streaming whenever ISYS needs to be reset to resume normal
> operation.
> 
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> ---
>  drivers/media/pci/intel/ipu6/ipu6-isys-queue.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c b/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c
> index 6596833e95d4..978acbd72e63 100644
> --- a/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c
> +++ b/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c
> @@ -481,6 +481,11 @@ static int start_streaming(struct vb2_queue *q, unsigned int count)
>  		av->vdev.name, ipu6_isys_get_frame_width(av),
>  		ipu6_isys_get_frame_height(av), pfmt->css_pixelformat);
>  
> +	scoped_guard(mutex, &av->isys->mutex) {
> +		if (av->isys->need_reset)
> +			return -EIO;

Shouldn't this goto out_return_buffers path as well?

> +	}
> +
>  	remote_pad = media_pad_remote_pad_unique(&av->pad);
>  	if (IS_ERR(remote_pad)) {
>  		dev_dbg(dev, "failed to get remote pad\n");
> -- 
> 2.47.3
>