api: fromjson/tojson generated code memory leak

Found by coverity. Fix potential memory leakage in generated code.

Type: fix
Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: If492541b8b66e574f30ecdd0dd533099cbe068ad

diff --git a/src/tools/vppapigen/vppapigen_c.py b/src/tools/vppapigen/vppapigen_c.py
index 66e0c2f..0727619 100644 (file)
--- a/src/tools/vppapigen/vppapigen_c.py
+++ b/src/tools/vppapigen/vppapigen_c.py
@@ -553,7 +553,7 @@ class FromJSON():
 
             write('    item = cJSON_GetObjectItem(o, "{}");\n'
                   .format(t.fieldname))
-            write('    if (!item) return 0;\n')
+            write('    if (!item) { free(a); return 0; }\n')
             self._dispatch[t.type](self, t, toplevel=True)
             write('\n')