null_blk: use available 'dev' in nullb_device_power_store()
authorJens Axboe <axboe@kernel.dk>
Mon, 28 Aug 2017 21:06:31 +0000 (15:06 -0600)
committerJens Axboe <axboe@kernel.dk>
Mon, 28 Aug 2017 21:06:31 +0000 (15:06 -0600)
commitb3c3051220f3e2a576ba8008c4a87b7d4c8a35e8
tree7876fb1a69cebca40c7080e600186dba7e2b6c2b
parent060fd198a3e113047da456f15889579067e6b75f
null_blk: use available 'dev' in nullb_device_power_store()

We already have this pointer, no need to use to_nullb_device()
again.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/null_blk.c