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KVM: fix spectrev1 gadgets

Browse source 
These were found with smatch, and then generalized when applicable.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2019-04-11 11:16:47 +02:00
parent be43c440eb
commit 1d487e9bf8
4 changed files with 16 additions and 9 deletions
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6
virt/kvm/kvm_main.c
View file

@ -2977,12 +2977,14 @@ static int kvm_ioctl_create_device(struct kvm *kvm,
struct kvm_device_ops *ops = NULL;
struct kvm_device *dev;
bool test = cd->flags & KVM_CREATE_DEVICE_TEST;
int type;
int ret;
if (cd->type >= ARRAY_SIZE(kvm_device_ops_table))
return -ENODEV;
ops = kvm_device_ops_table[cd->type];
type = array_index_nospec(cd->type, ARRAY_SIZE(kvm_device_ops_table));
ops = kvm_device_ops_table[type];
if (ops == NULL)
return -ENODEV;
@ -2997,7 +2999,7 @@ static int kvm_ioctl_create_device(struct kvm *kvm,
dev->kvm = kvm;
mutex_lock(&kvm->lock);
ret = ops->create(dev, cd->type);
ret = ops->create(dev, type);
if (ret < 0) {
mutex_unlock(&kvm->lock);
kfree(dev);