commit a87fa35514bcf17aeca97245574e3f735cec9074
author Wei Yongjun <yjwei@cn.fujitsu.com> Fri Mar 12 12:59:06 2010 +0800
committer Avi Kivity <avi@redhat.com> Mon May 17 12:15:34 2010 +0300
tree 484645e461ed2b75cb3b08092723883d60b14d23
parent 600f1ec3761671307935a583c46f17fff0fa9b72

KVM: fix the errno of ioctl KVM_[UN]REGISTER_COALESCED_MMIO failure

This patch change the errno of ioctl KVM_[UN]REGISTER_COALESCED_MMIO
from -EINVAL to -ENXIO if no coalesced mmio dev exists.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

virt/kvm/coalesced_mmio.c

diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c
index 36e2580..b66001f 100644
--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -139,7 +139,7 @@
 	struct kvm_coalesced_mmio_dev *dev = kvm->coalesced_mmio_dev;
 
 	if (dev == NULL)
-		return -EINVAL;
+		return -ENXIO;
 
 	mutex_lock(&kvm->slots_lock);
 	if (dev->nb_zones >= KVM_COALESCED_MMIO_ZONE_MAX) {
@@ -162,7 +162,7 @@
 	struct kvm_coalesced_mmio_zone *z;
 
 	if (dev == NULL)
-		return -EINVAL;
+		return -ENXIO;
 
 	mutex_lock(&kvm->slots_lock);