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[libvirt] [PATCH] qemu: Don't update count of vCPUs if hot-plug fails silently



When cpu hotplug fails without reporting an error, we would fail the
command but update the count of vCPUs anyways.

Commit 761fc481365703b861429d73a341bde352ba8d41 fixed the case when CPU
hot-unplug failed silently, but forgot to fix up the value in this case.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1000357
---
 src/qemu/qemu_driver.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 0a8e518..c39f04d 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3982,6 +3982,7 @@ static int qemuDomainHotplugVcpus(virQEMUDriverPtr driver,
                        _("got wrong number of vCPU pids from QEMU monitor. "
                          "got %d, wanted %d"),
                        ncpupids, vcpus);
+        vcpus = oldvcpus;
         ret = -1;
         goto cleanup;
     }
-- 
1.8.3.2


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