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fix off-by-one check in another KASSERT() for bcount 

still related to PR port-xen/56328
This commit is contained in:
jdolecek 2021-07-28 22:17:49 +00:00
parent 848819d954
commit 74676f8743
1 changed files with 3 additions and 3 deletions
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6
sys/arch/xen/xen/xbdback_xenbus.c
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@ -1,4 +1,4 @@
/* $NetBSD: xbdback_xenbus.c,v 1.98 2021/07/28 21:38:50 jdolecek Exp $ */
/* $NetBSD: xbdback_xenbus.c,v 1.99 2021/07/28 22:17:49 jdolecek Exp $ */
/*
* Copyright (c) 2006 Manuel Bouyer.
@ -26,7 +26,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: xbdback_xenbus.c,v 1.98 2021/07/28 21:38:50 jdolecek Exp $");
__KERNEL_RCSID(0, "$NetBSD: xbdback_xenbus.c,v 1.99 2021/07/28 22:17:49 jdolecek Exp $");
#include <sys/buf.h>
#include <sys/condvar.h>
@ -1311,7 +1311,7 @@ xbdback_co_io_gotio(struct xbdback_instance *xbdi, void *obj)
KASSERT(bcount <= MAXPHYS);
KASSERT(xbd_io->xio_start_offset < PAGE_SIZE);
KASSERT(bcount + xbd_io->xio_start_offset < VBD_VA_SIZE);
KASSERT(bcount + xbd_io->xio_start_offset <= VBD_VA_SIZE);
/* Fill-in the buf */
if (xbdi->xbdi_xen_req.operation == BLKIF_OP_WRITE) {