Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6
* 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6: (22 commits)
UBI: always start the background thread
UBI: fix gcc warning
UBI: remove pre-sqnum images support
UBI: fix kernel-doc errors and warnings
UBI: fix checkpatch.pl errors and warnings
UBI: bugfix - do not torture PEB needlessly
UBI: rework scrubbing messages
UBI: implement multiple volumes rename
UBI: fix and re-work debugging stuff
UBI: amend commentaries
UBI: fix error message
UBI: improve mkvol request validation
UBI: add ubi_sync() interface
UBI: fix 64-bit calculations
UBI: fix LEB locking
UBI: fix memory leak on error path
UBI: do not forget to free internal volumes
UBI: fix memory leak
UBI: avoid unnecessary division operations
UBI: fix buffer padding
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