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    SubjectRe: [PATCH 00/46] Use dmaenginem_async_device_register to simplify code
    On Fri, Aug 03, 2018 at 11:20:49AM +0300, Peter Ujfalusi wrote:
    > Hi,
    >
    > On 2018-08-03 10:19, Huang Shijie wrote:
    > > All the patches are using dmaenginem_async_device_register to simplify code
    > > except the last one:
    > > dmaengine: add COMPILE_TEST for the drivers
    > >
    > > I use the last one to do the compiler test.
    > > There are still 20 drivers which do not use the dmaenginem_async_device_register.
    > > Let me take a rest, if this patch set is accepted, I will do the rest.
    >
    > I think for most of the drivers this series is going to open a race
    > which is essentially:
    >
    > prior:
    > _remove()
    > {
    > ...
    > dma_async_device_register()
    > /* Free resources, disable HW, etc */

    If these resources are managed by the devm_* APIs.
    We can use the dmaenginem_async_device_register().

    The Devres will release all the things in the following order:
    ................................................
    dma_async_device_unregister()
    /* Free resources, disable HW, etc */
    ................................................


    Thanks
    Huang Shijie

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