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-rw-r--r--backends/hostmem.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/backends/hostmem.c b/backends/hostmem.c
index 327f9ee..0efd7b7 100644
--- a/backends/hostmem.c
+++ b/backends/hostmem.c
@@ -383,8 +383,10 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
assert(sizeof(backend->host_nodes) >=
BITS_TO_LONGS(MAX_NODES + 1) * sizeof(unsigned long));
assert(maxnode <= MAX_NODES);
- if (mbind(ptr, sz, backend->policy,
- maxnode ? backend->host_nodes : NULL, maxnode + 1, flags)) {
+
+ if (maxnode &&
+ mbind(ptr, sz, backend->policy, backend->host_nodes, maxnode + 1,
+ flags)) {
if (backend->policy != MPOL_DEFAULT || errno != ENOSYS) {
error_setg_errno(errp, errno,
"cannot bind memory to host NUMA nodes");