xen/blkfront: use bdget_disk

info->dev is never initialized to anything, so bdget(info->dev) is
meaningless.  Get rid of info->dev, and use bdget_disk on the gendisk.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 2e7c81e..4497ff8 100644 (file)
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -75,7 +75,6 @@ static struct block_device_operations xlvbd_block_fops;
 struct blkfront_info
 {
        struct xenbus_device *xbdev;
-       dev_t dev;
        struct gendisk *gd;
        int vdevice;
        blkif_vdev_t handle;
@@ -903,7 +902,7 @@ static void backend_changed(struct xenbus_device *dev,
                break;
 
        case XenbusStateClosing:
-               bd = bdget(info->dev);
+               bd = bdget_disk(info->gd, 0);
                if (bd == NULL)
                        xenbus_dev_fatal(dev, -ENODEV, "bdget failed");