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authorThomas Meyer <thomas@m3y3r.de>2011-11-08 20:32:19 +0100
committerAvi Kivity <avi@redhat.com>2011-12-27 11:17:11 +0200
commit6da64fdb8c0c683016b70c96200057347aa8fbb0 (patch)
treee9b6650625def2f92fb49dfdf511647ca27b7d56 /virt
parentfb92045843a8cd99c7b843d9b567a680a3854ba1 (diff)
downloadlinux-6da64fdb8c0c683016b70c96200057347aa8fbb0.tar.gz
KVM: Use kmemdup rather than duplicating its implementation
Use kmemdup rather than duplicating its implementation The semantic patch that makes this change is available in scripts/coccinelle/api/memdup.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/kvm_main.c11
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);