zram: cleanup reset_store
Use a local variable for the gendisk instead of the part0 block_device, as the gendisk is what this function actually operates on. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20220330052917.2566582-3-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>
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