From de924ca90a0ff1ad8adeab460761f65b7a742d72 Mon Sep 17 00:00:00 2001
From: Peter Krempa <pkrempa@redhat.com>
Date: Thu, 21 Jun 2012 18:34:32 +0200
Subject: [PATCH] virsh: Improve error when trying to change vm's cpu count 0

This patch adds a check for the count of processors the user requests
for the guest machine so that invalid values produce a more helpful
error message.
---
 tools/virsh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/virsh.c b/tools/virsh.c
index 265857d700..035482269b 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -5752,7 +5752,7 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd)
     if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
         return false;
 
-    if (vshCommandOptInt(cmd, "count", &count) < 0) {
+    if (vshCommandOptInt(cmd, "count", &count) < 0 || count <= 0) {
         vshError(ctl, "%s", _("Invalid number of virtual CPUs"));
         goto cleanup;
     }