[libvirt] [PATCH] virsh: Clear vsh last error during virshCommandOptVolBy

[John Ferlan]

https://bugzilla.redhat.com/show_bug.cgi?id=1529256

If one of the virStorageVolLookupBy{Key|Name|Path} succeeds and
we have a @vol, then clear the last libvirt error; otherwise, a
subsequent "other" failure may cause vshReportError to erroneously
report the wrong error as well as a reported 'vshError' error that
caused the failure.

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 tools/virsh-volume.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/virsh-volume.c b/tools/virsh-volume.c
index bacbec0d27..9d6ebd2325 100644
--- a/tools/virsh-volume.c
+++ b/tools/virsh-volume.c
@@ -129,6 +129,8 @@ virshCommandOptVolBy(vshControl *ctl, const vshCmd *cmd,
         else
             vshError(ctl, _("failed to get vol '%s', specifying --%s "
                             "might help"), n, pooloptname);
+    } else {
+        vshResetLibvirtError();
     }
 
     /* If the pool was specified, then make sure that the returned
-- 
2.13.6