From cfeed8c0d234262482da664cf9934d892b483923 Mon Sep 17 00:00:00 2001
From: Dattaprasad Govekar <65955475+DPG17@users.noreply.github.com>
Date: Mon, 21 Mar 2022 15:36:32 +0530
Subject: [PATCH] rgw_sal_motr: [CORTX-29221] Fix corner/negative cases in
 Multipart ListParts API (#127)

The changes will make ListParts API more robust.

Signed-off-by: Dattaprasad Govekar <dattaprasad.govekar@seagate.com>
---
 src/rgw/rgw_sal_motr.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/rgw/rgw_sal_motr.cc b/src/rgw/rgw_sal_motr.cc
index 1cb8da54b54cd..c19804a6888e3 100644
--- a/src/rgw/rgw_sal_motr.cc
+++ b/src/rgw/rgw_sal_motr.cc
@@ -2675,7 +2675,10 @@ int MotrMultipartUpload::list_parts(const DoutPrefixProvider *dpp, CephContext *
 				     int *next_marker, bool *truncated,
 				     bool assume_unsorted)
 {
-  int rc;
+  int rc = 0;
+  if (num_parts <= 0 or marker < 0)
+    return rc;
+
   vector<string> key_vec(num_parts);
   vector<bufferlist> val_vec(num_parts);