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-rw-r--r--sys/vm/device_pager.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/vm/device_pager.c b/sys/vm/device_pager.c
index d96cd85..65b268a 100644
--- a/sys/vm/device_pager.c
+++ b/sys/vm/device_pager.c
@@ -212,6 +212,7 @@ dev_pager_getpages(object, m, count, reqpage)
d_mmap_t *mapfunc;
int prot;
+ VM_OBJECT_LOCK_ASSERT(object, MA_OWNED);
dev = object->handle;
offset = m[reqpage]->pindex;
VM_OBJECT_UNLOCK(object);
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