Since commit 2736e8eeb0ccd ("block: use the holder as indication for exclusive opens") blkdev_put() requires a valid holder argument. So, do so also in block2mtd to unbreak bdev->bd_holder refcounting.

Cc: Christoph Hellwig hch@lst.de Cc: stable@vger.kernel.org Fixes: 2736e8eeb0ccd ("block: use the holder as indication for exclusive opens") Signed-off-by: Richard Weinberger richard@nod.at --- drivers/mtd/devices/block2mtd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index be106dc20ff3c..8c37650bbce45 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -209,7 +209,7 @@ static void block2mtd_free_device(struct block2mtd_dev *dev) if (dev->blkdev) { invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping, 0, -1); - blkdev_put(dev->blkdev, NULL); + blkdev_put(dev->blkdev, dev); }

kfree(dev);