mtd_blkdevs: simplify blktrans_getgeo

No need to grab a mtd_blktrans_dev given that ->open already holds one
and ->getgeo can only be called on an open disk.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210823073359.705281-8-hch@lst.de

diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 84bcad1..e8eb4d8 100644 (file)
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -257,7 +257,7 @@ unlock:
 
 static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-       struct mtd_blktrans_dev *dev = blktrans_dev_get(bdev->bd_disk);
+       struct mtd_blktrans_dev *dev = bdev->bd_disk->private_data;
        int ret = -ENXIO;
 
        mutex_lock(&dev->lock);
@@ -268,7 +268,6 @@ static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo)
        ret = dev->tr->getgeo ? dev->tr->getgeo(dev, geo) : -ENOTTY;
 unlock:
        mutex_unlock(&dev->lock);
-       blktrans_dev_put(dev);
        return ret;
 }