[GIT PULL] Block updates for 3.17-rc

Hi Linus, A small collection of fixes for the current rc series. It contains: - Two small blk-mq patches from Rob Elliott, cleaning up error case at init time. - A fix from Ming Lei, fixing SG merging for blk-mq where QUEUE_FLAG_SG_NO_MERGE is the default. - A dev_t minor lifetime fix from

[GIT PULL] Block updates for 3.17-rc

Hi Linus, A small collection of fixes for the current rc series. It contains: - Two small blk-mq patches from Rob Elliott, cleaning up error case at init time. - A fix from Ming Lei, fixing SG merging for blk-mq where QUEUE_FLAG_SG_NO_MERGE is the default. - A dev_t minor lifetime fix from