[3.12,70/82] KVM: return an error code in kvm_vm_ioctl_register_coalesced_mmio()
diff mbox series

Message ID 20140220235021.580818485@linuxfoundation.org
State New, archived
Headers show
  • 3.12.13-stable review
Related show

Commit Message

Greg KH Feb. 20, 2014, 11:52 p.m. UTC
3.12-stable review patch.  If anyone has any objections, please let me know.


From: Dan Carpenter <dan.carpenter@oracle.com>

commit aac5c4226e7136c331ed384c25d5560204da10a0 upstream.

If kvm_io_bus_register_dev() fails then it returns success but it should
return an error code.

I also did a little cleanup like removing an impossible NULL test.

Fixes: 2b3c246a682c ('KVM: Make coalesced mmio use a device per zone')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

 virt/kvm/coalesced_mmio.c |    8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

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diff mbox series

--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -154,17 +154,13 @@  int kvm_vm_ioctl_register_coalesced_mmio
 	list_add_tail(&dev->list, &kvm->coalesced_zones);
-	return ret;
+	return 0;
-	if (dev == NULL)
-		return -ENXIO;
-	return 0;
+	return ret;
 int kvm_vm_ioctl_unregister_coalesced_mmio(struct kvm *kvm,