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Commit 73e39e4d authored by Ilya Dryomov's avatar Ilya Dryomov Committed by Ilya Dryomov
Browse files

rbd: fix error paths in rbd_dev_refresh() 



header_rwsem should be released on errors.  Also remove useless
rbd_dev->mapping.size != rbd_dev->header.image_size test.

Signed-off-by: default avatarIlya Dryomov <idryomov@redhat.com>
parent 982d6011

drivers/block/rbd.c

+6 −7
Original line number Diff line number Diff line
@@ -3694,7 +3694,7 @@ static int rbd_dev_refresh(struct rbd_device *rbd_dev) 


	ret = rbd_dev_header_info(rbd_dev);

	if (ret)

		return ret;

		goto out;



	/*

	 * If there is a parent, see if it has disappeared due to the
@@ -3703,23 +3703,22 @@ static int rbd_dev_refresh(struct rbd_device *rbd_dev) 
	if (rbd_dev->parent) {

		ret = rbd_dev_v2_parent_info(rbd_dev);

		if (ret)

			return ret;

			goto out;

	}



	if (rbd_dev->spec->snap_id == CEPH_NOSNAP) {

		if (rbd_dev->mapping.size != rbd_dev->header.image_size)

		rbd_dev->mapping.size = rbd_dev->header.image_size;

	} else {

		/* validate mapped snapshot's EXISTS flag */

		rbd_exists_validate(rbd_dev);

	}



out:

	up_write(&rbd_dev->header_rwsem);



	if (mapping_size != rbd_dev->mapping.size)

	if (!ret && mapping_size != rbd_dev->mapping.size)

		rbd_dev_update_size(rbd_dev);



	return 0;

	return ret;

}



static int rbd_init_disk(struct rbd_device *rbd_dev)