Artem B. Bityutskiy wrote:
Then, I see /sys/devices/mydev/ in sysfs. I open
pre-defined /sys/devices/mydev/power/state in userspace and don't close it.
Then I run lsmod, and see zero refcount to my module. Well, I run rmmod
mymod, module is unloaded.
Then I close /sys/devices/mydev/power/state, and enjoy segfault.
I actually forgot to formulate my question: why module's refcount is not
increased when somebody opens a sysfs file which belongs to this module?
How to withstan to an unexpected module unload?
Thanks.
--
Best Regards,
Artem B. Bityutskiy,
St.-Petersburg, Russia.
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