Messages in this thread Patch in this message | | | From | Avi Kivity <> | Subject | [PATCH 15/15] KVM: Future-proof argument-less ioctls | Date | Sun, 11 Mar 2007 15:53:27 +0200 |
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Some ioctls ignore their arguments. By requiring them to be zero now, we allow a nonzero value to have some special meaning in the future.
Signed-off-by: Avi Kivity <avi@qumranet.com> --- drivers/kvm/kvm_main.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index b81f007..bf8403e 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -2169,6 +2169,9 @@ static long kvm_vcpu_ioctl(struct file *filp, switch (ioctl) { case KVM_RUN: + r = -EINVAL; + if (arg) + goto out; r = kvm_vcpu_ioctl_run(vcpu, vcpu->run); break; case KVM_GET_REGS: { @@ -2440,9 +2443,15 @@ static long kvm_dev_ioctl(struct file *filp, switch (ioctl) { case KVM_GET_API_VERSION: + r = -EINVAL; + if (arg) + goto out; r = KVM_API_VERSION; break; case KVM_CREATE_VM: + r = -EINVAL; + if (arg) + goto out; r = kvm_dev_ioctl_create_vm(); break; case KVM_GET_MSR_INDEX_LIST: { -- 1.5.0.2 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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