[PATCH 08/28] kvm tools: Fix KVM_RUN exit code check

Matt Evans
2011-12-06T03:39:46Z

kvm_cpu__run() currently die()s if KVM_RUN returns non-zero. Some architectures
may return positive values in non-error cases, whereas real errors are always
negative return values. Check for those instead.

Signed-off-by: Matt Evans <matt@ozlabs.org>
---
tools/kvm/kvm-cpu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/kvm/kvm-cpu.c b/tools/kvm/kvm-cpu.c
index 9bc0796..884a89f 100644
--- a/tools/kvm/kvm-cpu.c
+++ b/tools/kvm/kvm-cpu.c
@@ -30,7 +30,7 @@ void kvm_cpu__run(struct kvm_cpu *vcpu)
int err;

err = ioctl(vcpu->vcpu_fd, KVM_RUN, 0);
- if (err && (errno != EINTR && errno != EAGAIN))
+ if (err < 0 && (errno != EINTR && errno != EAGAIN))
die_perror("KVM_RUN failed");
}