By checking the return value from kvm_ipc__register_handler,
we can ensure that it succeeds.

Signed-off-by: Yang Bai <hamo...@gmail.com>
---
 tools/kvm/kvm.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/tools/kvm/kvm.c b/tools/kvm/kvm.c
index f02d5df..99bcef4 100644
--- a/tools/kvm/kvm.c
+++ b/tools/kvm/kvm.c
@@ -396,10 +396,16 @@ struct kvm *kvm__init(const char *kvm_dev, const char 
*hugetlbfs_path, u64 ram_s
                goto err_vm_fd;
        }
 
-       kvm_ipc__register_handler(KVM_IPC_PID, kvm__pid);
+       ret = kvm_ipc__register_handler(KVM_IPC_PID, kvm__pid);
+       if (ret < 0) {
+               pr_err("Register ipc handler failed.");
+               goto err_ipc;
+       }
 
        return kvm;
 
+err_ipc:
+       kvm_ipc__stop();
 err_vm_fd:
        close(kvm->vm_fd);
 err_sys_fd:
-- 
1.7.8.3

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