Author: ray
Date: Tue Sep 17 11:20:53 2019
New Revision: 352442
URL: https://svnweb.freebsd.org/changeset/base/352442
Log:
MFC r351649 Check for region dups.
Modified:
stable/12/sys/arm/arm/physmem.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/arm/arm/physmem.c
==============================================================================
--- stable/12/sys/arm/arm/physmem.c Tue Sep 17 10:09:59 2019
(r352441)
+++ stable/12/sys/arm/arm/physmem.c Tue Sep 17 11:20:53 2019
(r352442)
@@ -287,6 +287,8 @@ insert_region(struct region *regions, size_t rcnt, vm_
ep = regions + rcnt;
for (i = 0, rp = regions; i < rcnt; ++i, ++rp) {
+ if (rp->addr == addr && rp->size == size) /* Pure dup. */
+ return (rcnt);
if (flags == rp->flags) {
if (addr + size == rp->addr) {
rp->addr = addr;
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