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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