Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 5c0d0920 authored by Wei Yongjun's avatar Wei Yongjun Committed by Avi Kivity
Browse files

KVM: ia64: fix the error code of ioctl KVM_IA64_VCPU_GET_STACK failure 



The ioctl KVM_IA64_VCPU_GET_STACK does not set the error code if
copy_to_user() fail, and 0 will be return, we should use -EFAULT
instead of 0 in this case, so this patch fixed it.

Signed-off-by: default avatarWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent ec68798c

arch/ia64/kvm/kvm-ia64.c

+3 −1
Original line number Diff line number Diff line
@@ -1535,8 +1535,10 @@ long kvm_arch_vcpu_ioctl(struct file *filp, 
			goto out;



		if (copy_to_user(user_stack, stack,

				 sizeof(struct kvm_ia64_vcpu_stack)))

				 sizeof(struct kvm_ia64_vcpu_stack))) {

			r = -EFAULT;

			goto out;

		}



		break;

	}