--- drivers/staging/hv/blkvsc_drv.c

+++ drivers/staging/hv/blkvsc_drv.c

@@ -378,6 +378,7 @@ static int blkvsc_probe(struct device *d

blkdev->gd->first_minor = 0;

blkdev->gd->fops = &block_ops;

blkdev->gd->private_data = blkdev;

+ blkdev->gd->driverfs_dev = &(blkdev->device_ctx->device);

sprintf(blkdev->gd->disk_name, "hd%c", 'a' + devnum);

blkvsc_do_inquiry(blkdev);