[PATCH 2/4] virsh: do not assign negative values to niothreads

[Ján Tomko <jtomko@xxxxxxxxxx>]

Use a temporary 'rc' variable to avoid comparing signed
and unsigned integers in the cleanup section.

Bug introduced by commit 3072ded which added the comparison against
the unsigned 'i'.

Also make niothreads size_t to mark that it should be unsigned.

Signed-off-by: Ján Tomko <jtomko@xxxxxxxxxx>
---
 tools/virsh-domain.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index 420ab5e2c3..17dd992751 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -7531,7 +7531,7 @@ cmdIOThreadInfo(vshControl *ctl, const vshCmd *cmd)
     bool config = vshCommandOptBool(cmd, "config");
     bool live = vshCommandOptBool(cmd, "live");
     bool current = vshCommandOptBool(cmd, "current");
-    int niothreads = 0;
+    size_t niothreads = 0;
     virDomainIOThreadInfoPtr *info;
     size_t i;
     int maxcpu;
@@ -7539,6 +7539,7 @@ cmdIOThreadInfo(vshControl *ctl, const vshCmd *cmd)
     virshControlPtr priv = ctl->privData;
     vshTablePtr table = NULL;
     bool ret = false;
+    int rc;
 
     VSH_EXCLUSIVE_OPTIONS_VAR(current, live);
     VSH_EXCLUSIVE_OPTIONS_VAR(current, config);
@@ -7554,10 +7555,11 @@ cmdIOThreadInfo(vshControl *ctl, const vshCmd *cmd)
     if ((maxcpu = virshNodeGetCPUCount(priv->conn)) < 0)
         goto cleanup;
 
-    if ((niothreads = virDomainGetIOThreadInfo(dom, &info, flags)) < 0) {
+    if ((rc = virDomainGetIOThreadInfo(dom, &info, flags)) < 0) {
         vshError(ctl, _("Unable to get domain IOThreads information"));
         goto cleanup;
     }
+    niothreads = rc;
 
     if (niothreads == 0) {
         ret = true;
-- 
2.19.2