[libvirt] [PATCH] Fix vm define error with back compat console device

[Cole Robinson <crobinso@xxxxxxxxxx>]

If you define a domain with serial devs > 0 && parallel devs >= serial
devs, libvirtd segfaults when trying to set up the back compat console
device. We were using a previous loop counter where we shouldn't. The
attached patch fixes this.

Thanks,
Cole

diff --git a/src/domain_conf.c b/src/domain_conf.c
index 8bb51f7..890afe0 100644
--- a/src/domain_conf.c
+++ b/src/domain_conf.c
@@ -3320,8 +3320,9 @@ char *virDomainDefFormat(virConnectPtr conn,
         if (virDomainChrDefFormat(conn, &buf, def->console, "console") < 0)
             goto cleanup;
     } else if (def->nserials != 0) {
-        /* ..else for legacy compat duplicate the serial device as a console */
-        if (virDomainChrDefFormat(conn, &buf, def->serials[n], "console") < 0)
+        /* ..else for legacy compat duplicate the first serial device as a
+         * console */
+        if (virDomainChrDefFormat(conn, &buf, def->serials[0], "console") < 0)
             goto cleanup;
     }
 

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