hsa: fix coverity warning

Type:fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I38b155f7617d002ac16943c2c031269a17f4ba73

diff --git a/src/plugins/hs_apps/sapi/vpp_echo.c b/src/plugins/hs_apps/sapi/vpp_echo.c
index 0550006..560c6a8 100644 (file)
--- a/src/plugins/hs_apps/sapi/vpp_echo.c
+++ b/src/plugins/hs_apps/sapi/vpp_echo.c
@@ -498,6 +498,8 @@ session_unlisten_handler (session_unlisten_reply_msg_t * mp)
   echo_main_t *em = &echo_main;
 
   ls = echo_get_session_from_handle (em, mp->handle);
+  if (!ls)
+    return;
   em->proto_cb_vft->cleanup_cb (ls, 0 /* parent_died */ );
   ls->session_state = ECHO_SESSION_STATE_CLOSED;
   if (--em->listen_session_cnt == 0)