Re: [PATCH v2 4/5] media: iris: reject open() when the session limit is reached

[Konrad Dybcio]

On 7/31/26 2:31 AM, Dmitry Baryshkov wrote:
> iris_add_session() silently skips adding the instance to core->instances
> once max_session_count is reached, but returns void, so iris_open()
> continues as if it succeeded and hands a file descriptor back to
> userspace. As the instance is not on core->instances, firmware responses
> for it are dropped and every subsequent ioctl times out.
> 
> Make iris_add_session() return an error when the limit is reached and
> fail iris_open() accordingly, freeing the partially initialised instance.
> 
> Fixes: 38fc8beaba55 ("media: iris: implement reqbuf ioctl with vb2_queue_setup")
> Assisted-by: Claude:claude-opus-4-8
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Konrad