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In current implementation, the sysfs entries is not removed before return -ENODEV.
Creating the sysfs attribute should be the last thing done by the function,
after all the rest has been successful.
Otherwise there is a small window during which user-space can access the attribute
but the driver isn't ready to deal with the requests.
Fix it by moving sysfs_create_group to be the last thing done by the function.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Simon Guinot <sguinot@lacie.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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