On Thu, 30 Jun 2011, Kevin Hilman wrote:

> Another curiosity is that, contrary to the above documentation, there is
> no usage_count increment before the bus/driver ->remove() (although
> there is a _get_sync/_put_sync around the sysfs_remove and notifier just
> before the bus/driver->remove().

I hadn't noticed that.  There may be a reason for using get_sync 
instead of get_noresume, but it isn't explained anywhere.  And it 
certainly looks like a mistake for the put_sync to occur before the 
->remove() call instead of after.

This needs to be fixed.

Alan Stern

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