The command 'domdisplay' is not freeing the domain pointer properly in 
cleanup section. See the error below:

virsh # domdisplay WINDOWS7
vnc://127.0.0.1:0

virsh # quit

error: One or more references were leaked after disconnect from the hypervisor

Valgrind report:

==29168== 66 (56 direct, 10 indirect) bytes in 1 blocks are definitely lost in loss record 154 of 239
==29168==    at 0x4C2FB55: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==29168==    by 0x5505324: virAllocVar (viralloc.c:560)
==29168==    by 0x555A61B: virObjectNew (virobject.c:199)
==29168==    by 0x561F367: virGetDomain (datatypes.c:284)
==29168==    by 0x5680979: get_nonnull_domain (remote_driver.c:8143)
==29168==    by 0x5680979: remoteDomainLookupByName (remote_client_bodies.h:3047)
==29168==    by 0x5623D9A: virDomainLookupByName (libvirt-domain.c:425)
==29168==    by 0x160480: virshLookupDomainInternal (virsh-util.c:59)
==29168==    by 0x160547: virshCommandOptDomainBy (virsh-util.c:98)
==29168==    by 0x13D3A9: cmdDomDisplay (virsh-domain.c:10963)
==29168==    by 0x165680: vshCommandRun (vsh.c:1327)
==29168==    by 0x12E320: main (virsh.c:953)

Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
---
 tools/virsh-domain.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index 55f4e14..8f3d4d5 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -11153,6 +11153,7 @@ cmdDomDisplay(vshControl *ctl, const vshCmd *cmd)
     VIR_FREE(output);
     xmlXPathFreeContext(ctxt);
     xmlFreeDoc(xml);
+    virshDomainFree(dom);
     return ret;
 }
 
-- 
2.7.4

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On Fri, Jul 07, 2017 at 18:35:33 -0300, Julio Faracco wrote:

I'll tweak the subject (summary) line a bit ...

> The command 'domdisplay' is not freeing the domain pointer properly in 
> cleanup section. See the error below:

[...]

> Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
> ---
>  tools/virsh-domain.c | 1 +
>  1 file changed, 1 insertion(+)

ACK, and I'll push it in a while
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