Fix openair3/NAS/UE cppcheck error

openair3/NAS/UE/EMM/SAP/emm_as.c

@@ -443,14 +443,14 @@ static int _emm_as_data_ind(nas_user_t *user, const emm_as_data_t *msg, int *emm
                    EPS_MOBILITY_MANAGEMENT_MESSAGE) {
           /* Process EMM data */
           rc = _emm_as_recv(user, plain_msg, bytes, emm_cause);
+          free(plain_msg);
         } else if (header.protocol_discriminator ==
                    EPS_SESSION_MANAGEMENT_MESSAGE) {
           const OctetString data = {bytes, (uint8_t *)plain_msg};
           /* Foward ESM data to EPS session management */
           rc = lowerlayer_data_ind(user, &data);
+          free(plain_msg);
         }
-
-        free(plain_msg);
       }
     } else {
       /* Process successfull lower layer transfer indication */

openair3/NAS/UE/EMM/SecurityModeControl.c

@@ -296,16 +296,16 @@ int emm_proc_security_mode_command(nas_user_t *user, int native_ksi, int ksi,
     else {
       /* Setup EMM cause code */
       emm_cause = EMM_CAUSE_SECURITY_MODE_REJECTED;
-
-      /* Release security mode control internal data */
-      if (security_data->kenb.value) {
-        free(security_data->kenb.value);
-        security_data->kenb.value = NULL;
-        security_data->kenb.length = 0;
-      }
     }
   }
 
+  /* Release security mode control internal data */
+  if (security_data->kenb.value) {
+    free(security_data->kenb.value);
+    security_data->kenb.value = NULL;
+    security_data->kenb.length = 0;
+  }
+
   /* Setup EMM procedure handler to be executed upon receiving
    * lower layer notification */
   rc = emm_proc_lowerlayer_initialize(user->lowerlayer_data, NULL, NULL, NULL, NULL);