If we never find the valid credtype in the list, then we'd return
NULL without an error signaled forcing the caller to generate one
that will probably be incorrect. Let's be specific.

Signed-off-by: John Ferlan <jferlan@redhat.com>
---
 src/util/virauth.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/util/virauth.c b/src/util/virauth.c
index a04abb613b..d706658135 100644
--- a/src/util/virauth.c
+++ b/src/util/virauth.c
@@ -191,10 +191,12 @@ virAuthGetUsernamePath(const char *path,
         if ((*(auth->cb))(&cred, 1, auth->cbdata) < 0)
             VIR_FREE(cred.result);
 
-        break;
+        return cred.result;
     }
 
-    return cred.result;
+    virReportError(VIR_ERR_AUTH_FAILED, "%s",
+                   _("Missing VIR_CRED_AUTHNAME credential type"));
+    return NULL;
 }
 
 
@@ -267,10 +269,13 @@ virAuthGetPasswordPath(const char *path,
         if ((*(auth->cb))(&cred, 1, auth->cbdata) < 0)
             VIR_FREE(cred.result);
 
-        break;
+        return cred.result;
     }
 
-    return cred.result;
+    virReportError(VIR_ERR_AUTH_FAILED, "%s",
+                   _("Missing VIR_CRED_PASSPHRASE or VIR_CRED_NOECHOPROMPT "
+                     "credential type"));
+    return NULL;
 }
 
 
-- 
2.17.1

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