ray_cs: Fix copy_from_user handling
commit 575c9ed7 upstream. I've not touched the other stuff here but the word "locking" comes to mind. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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