svn commit: r263360 - stable/10/sys/vm
Konstantin Belousov
kib at FreeBSD.org
Wed Mar 19 13:09:18 UTC 2014
Author: kib
Date: Wed Mar 19 13:09:17 2014
New Revision: 263360
URL: http://svnweb.freebsd.org/changeset/base/263360
Log:
MFC r263095:
Initialize paddr to handle the case of zero size.
Modified:
stable/10/sys/vm/device_pager.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/vm/device_pager.c
==============================================================================
--- stable/10/sys/vm/device_pager.c Wed Mar 19 13:04:16 2014 (r263359)
+++ stable/10/sys/vm/device_pager.c Wed Mar 19 13:09:17 2014 (r263360)
@@ -412,6 +412,7 @@ old_dev_pager_ctor(void *handle, vm_ooff
* XXX assumes VM_PROT_* == PROT_*
*/
npages = OFF_TO_IDX(size);
+ paddr = 0; /* Make paddr initialized for the case of size == 0. */
for (off = foff; npages--; off += PAGE_SIZE) {
if (csw->d_mmap(dev, off, &paddr, (int)prot, &dummy) != 0) {
dev_relthread(dev, ref);
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