diff options
| -rw-r--r-- | virt/kvm/kvm_main.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index d9cfb782cb8..4c5b9a23967 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -775,10 +775,10 @@ skip_lpage: if (!npages) { r = -ENOMEM; - slots = kzalloc(sizeof(struct kvm_memslots), GFP_KERNEL); + slots = kmemdup(kvm->memslots, sizeof(struct kvm_memslots), + GFP_KERNEL); if (!slots) goto out_free; - memcpy(slots, kvm->memslots, sizeof(struct kvm_memslots)); if (mem->slot >= slots->nmemslots) slots->nmemslots = mem->slot + 1; slots->generation++; @@ -810,10 +810,10 @@ skip_lpage: } r = -ENOMEM; - slots = kzalloc(sizeof(struct kvm_memslots), GFP_KERNEL); + slots = kmemdup(kvm->memslots, sizeof(struct kvm_memslots), + GFP_KERNEL); if (!slots) goto out_free; - memcpy(slots, kvm->memslots, sizeof(struct kvm_memslots)); if (mem->slot >= slots->nmemslots) slots->nmemslots = mem->slot + 1; slots->generation++; @@ -2520,10 +2520,9 @@ int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, if (bus->dev_count > NR_IOBUS_DEVS-1) return -ENOSPC; - new_bus = kzalloc(sizeof(struct kvm_io_bus), GFP_KERNEL); + new_bus = kmemdup(bus, sizeof(struct kvm_io_bus), GFP_KERNEL); if (!new_bus) return -ENOMEM; - memcpy(new_bus, bus, sizeof(struct kvm_io_bus)); kvm_io_bus_insert_dev(new_bus, dev, addr, len); rcu_assign_pointer(kvm->buses[bus_idx], new_bus); synchronize_srcu_expedited(&kvm->srcu); |