…
> +++ b/drivers/accel/qda/qda_memory_manager.c
…
> +int qda_memory_manager_assign_device(struct qda_memory_manager *mem_mgr,
> + struct drm_file *file_priv)
> +{
…
> + current_pid = qda_priv->pid;
> +
> + mutex_lock(&mem_mgr->process_assignment_lock);
…
> +unlock_and_return:
> + mutex_unlock(&mem_mgr->process_assignment_lock);
> +
> + return ret;
> +}
…
Under which circumstances would you become interested to apply a statement
like “guard(mutex)(&mem_mgr->process_assignment_lock);”?
https://elixir.bootlin.com/linux/v7.2/source/include/linux/mutex.h#L253
Regards,
Markus
