[PATCH v10 3/6] iio: core: Add new DMABUF interface infrastructure

[Markus Elfring]

…
> +++ b/drivers/iio/industrialio-buffer.c
…
>  static int iio_buffer_chrdev_release(struct inode *inode, struct file *filep)
>  {
…
>  	wake_up(&buffer->pollq);
>
> +	mutex_lock(&buffer->dmabufs_mutex);
> +
> +	/* Close all attached DMABUFs */
…
> +	mutex_unlock(&buffer->dmabufs_mutex);
> +
>  	kfree(ib);
…

Would you become interested to apply a statement like “guard(mutex)(&buffer->dmabufs_mutex);”?
https://elixir.bootlin.com/linux/v6.10-rc3/source/include/linux/mutex.h#L196

Regards,
Markus