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Commit 469738e6 authored by Laszlo Ersek's avatar Laszlo Ersek Committed by Konrad Rzeszutek Wilk
Browse files

xen-blkfront: plug device number leak in xlblk_init() error path 



... though after a failed xenbus_register_frontend() all may be lost.

Acked-by: default avatarIan Campbell <ian.campbell@citrix.com>
Signed-off-by: default avatarLaszlo Ersek <lersek@redhat.com>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent d11e6158

drivers/block/xen-blkfront.c

+9 −1
Original line number Diff line number Diff line
@@ -1450,6 +1450,8 @@ static struct xenbus_driver blkfront = { 


static int __init xlblk_init(void)

{

	int ret;



	if (!xen_domain())

		return -ENODEV;
@@ -1459,7 +1461,13 @@ static int __init xlblk_init(void) 
		return -ENODEV;

	}



	return xenbus_register_frontend(&blkfront);

	ret = xenbus_register_frontend(&blkfront);

	if (ret) {

		unregister_blkdev(XENVBD_MAJOR, DEV_NAME);

		return ret;

	}



	return 0;

}

module_init(xlblk_init);