The following leaks are due to missing ds_destroy in a few
places in build_acl.

5,850 bytes in 50 blocks are definitely lost in loss record 93 of 93
   at 0x4C29BFD: malloc (in 
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x4C2BACB: realloc (in 
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x449507: xrealloc (util.c:123)
   by 0x42CC73: ds_reserve (dynamic-string.c:63)
   by 0x42D08F: ds_put_format_valist (dynamic-string.c:161)
   by 0x42D176: ds_put_format (dynamic-string.c:142)
   by 0x40D380: build_acls (ovn-northd.c:2320)
   by 0x40D380: build_lswitch_flows.constprop.36 (ovn-northd.c:2472)
   by 0x4072D9: build_lflows (ovn-northd.c:3845)
   by 0x4072D9: ovnnb_db_run (ovn-northd.c:3971)
   by 0x4072D9: main (ovn-northd.c:4375)

9,360 bytes in 72 blocks are definitely lost in loss record 93 of 93
   at 0x4C29BFD: malloc (in 
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x4C2BACB: realloc (in 
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x449507: xrealloc (util.c:123)
   by 0x42CC73: ds_reserve (dynamic-string.c:63)
   by 0x42D08F: ds_put_format_valist (dynamic-string.c:161)
   by 0x42D176: ds_put_format (dynamic-string.c:142)
   by 0x40D505: build_acls (ovn-northd.c:2346)
   by 0x40D505: build_lswitch_flows.constprop.36 (ovn-northd.c:2472)
   by 0x4072D9: build_lflows (ovn-northd.c:3845)
   by 0x4072D9: ovnnb_db_run (ovn-northd.c:3971)
   by 0x4072D9: main (ovn-northd.c:4375)

Signed-off-by: Ramu Ramamurthy <ramu.ramamur...@us.ibm.com>
Acked-by: Ryan Moats <rmo...@us.ibm.com>
---
 ovn/northd/ovn-northd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ovn/northd/ovn-northd.c b/ovn/northd/ovn-northd.c
index 0ad9190..1731332 100644
--- a/ovn/northd/ovn-northd.c
+++ b/ovn/northd/ovn-northd.c
@@ -2342,6 +2342,7 @@ build_acls(struct ovn_datapath *od, struct hmap *lflows)
                 ovn_lflow_add(
                     lflows, od, S_SWITCH_OUT_ACL, 34000, ds_cstr(&match),
                     actions);
+                ds_destroy(&match);
             }
         }
 
@@ -2368,6 +2369,7 @@ build_acls(struct ovn_datapath *od, struct hmap *lflows)
                 ovn_lflow_add(
                     lflows, od, S_SWITCH_OUT_ACL, 34000, ds_cstr(&match),
                     actions);
+                ds_destroy(&match);
             }
         }
     }
-- 
1.8.3.1

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