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    SubjectRe: Recent and not-so problems with tifm_sd driver
    Alex Dubov wrote:
    >
    > mmc_rescan
    > mmc_register_card
    > device_add
    > mmc_block_probe
    > mmc_block_alloc
    > -> queue thread starts running
    > add_disk
    > -> issues a lot of requests; card fails, my drivers calls mmc_remove_host, which in
    > turn calls device_del, though we are still in device_add
    >

    Ahhh, now I see. Well that's an entirely different kettle of fish.

    Removing the device in this stack is not supported (we would have a whole bunch
    of nasty dead lock possibilities to consider). You need to delay the removal in
    some form, e.g. using the mmc workqueue.

    Rgds
    --
    -- Pierre Ossman

    Linux kernel, MMC maintainer http://www.kernel.org
    PulseAudio, core developer http://pulseaudio.org
    rdesktop, core developer http://www.rdesktop.org
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