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

PATCH Applied Wei Yongjun 2 participants 2 messages Mar 12, 2010 – Mar 15, 2010 KVM

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Wei Yongjun

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#0 lore raw

PATCH 1/1 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 <[email protected]>
---
 virt/kvm/coalesced_mmio.c |    4 ++--
 virt/kvm/kvm_main.c       |    2 --
 2 files changed, 2 insertions(+), 4 deletions(-)
virt/kvm/coalesced_mmio.c +2 -2
index 5169736..22500d4 100644
@@ -138,7 +138,7 @@ int kvm_vm_ioctl_register_coalesced_mmio(struct kvm *kvm,
 	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) {

@@ -161,7 +161,7 @@ int kvm_vm_ioctl_unregister_coalesced_mmio(struct kvm *kvm,
 	struct kvm_coalesced_mmio_zone *z;
 
 	if (dev == NULL)
-		return -EINVAL;
+		return -ENXIO;
 
 	mutex_lock(&kvm->slots_lock);
virt/kvm/kvm_main.c +0 -2
index 0e06a6d..861435e 100644
@@ -1603,7 +1603,6 @@ static long kvm_vm_ioctl(struct file *filp,
 		r = -EFAULT;
 		if (copy_from_user(&zone, argp, sizeof zone))
 			goto out;
-		r = -ENXIO;
 		r = kvm_vm_ioctl_register_coalesced_mmio(kvm, &zone);
 		if (r)
 			goto out;

@@ -1615,7 +1614,6 @@ static long kvm_vm_ioctl(struct file *filp,
 		r = -EFAULT;
 		if (copy_from_user(&zone, argp, sizeof zone))
 			goto out;
-		r = -ENXIO;
 		r = kvm_vm_ioctl_unregister_coalesced_mmio(kvm, &zone);
 		if (r)
 			goto out;
Signature · 1 line
1.6.3.3
Applied
#1 lore raw
Quoted 4 lines · Wei Yongjun

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 <[email protected]>

Applied all, thanks.