svn commit: r342147 - stable/12/sys/dev/acpica

[Konstantin Belousov]

Author: kib
Date: Sun Dec 16 02:44:57 2018
New Revision: 342147
URL: https://svnweb.freebsd.org/changeset/base/342147

Log:
  MFC r341399:
  Fix off by one in hpet_mmap() csw method.

Modified:
  stable/12/sys/dev/acpica/acpi_hpet.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/dev/acpica/acpi_hpet.c
==============================================================================
--- stable/12/sys/dev/acpica/acpi_hpet.c	Sun Dec 16 02:42:32 2018	(r342146)
+++ stable/12/sys/dev/acpica/acpi_hpet.c	Sun Dec 16 02:44:57 2018	(r342147)
@@ -396,7 +396,7 @@ hpet_mmap(struct cdev *cdev, vm_ooffset_t offset, vm_p
 	struct hpet_softc *sc;
 
 	sc = cdev->si_drv1;
-	if (offset > rman_get_size(sc->mem_res))
+	if (offset >= rman_get_size(sc->mem_res))
 		return (EINVAL);
 	if (!sc->mmap_allow_write && (nprot & PROT_WRITE))
 		return (EPERM);