[PATCH v11 3/7] iio: core: Add new DMABUF interface infrastructure

Markus Elfring Markus.Elfring at web.de
Wed Jun 19 13:28:43 UTC 2024


>>>>> +++ b/drivers/iio/industrialio-buffer.c
>>>>> +static void iio_buffer_dmabuf_release(struct kref *ref)
>>> +{
>>>>> +	dma_resv_lock(dmabuf->resv, NULL);
>>> +	dma_buf_unmap_attachment(attach, priv->sgt, priv->dir);
>>> +	dma_resv_unlock(dmabuf->resv);
>>>>
>> Under which circumstances will another lock guard become applicable?
>> https://elixir.bootlin.com/linux/v6.10-rc4/source/include/linux/cleanup.h#L179
>
> As soon as "struct dma_resv" gets a DEFINE_GUARD().

Would any contributor like to add a macro call accordingly?

Regards,
Markus


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