Re: [PATCH] es1371 race fixes

[Alan Cox]

>   o es1371_mmap used to use lock_kernel to do some synchronistation,
>	this is superceeded by s->sem.
>   o remap_page_range (used in es1371_mmap) needs the mm semaphore as
>     stated by a comment and the code.  I have found _NO_ driver in the
>     tree so far that does this locking right...

I think they rely on the lock_kernel stuff - which Id prefer not to take out
to be honest. There is just a little too much vm related lock_kernel stuff
left to do that