fix edge case segfault

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12697 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_ivr_async.c

@@ -448,11 +448,10 @@ static switch_bool_t record_callback(switch_media_bug_t *bug, void *user_data, s
 			
 			if (rh->fh) {
 				switch_core_file_close(rh->fh);
-			}
-		
-			if (rh->fh->samples_out < read_impl.samples_per_second * 3) {
-				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Discarding short file %s\n", rh->file);
-				switch_file_remove(rh->file, switch_core_session_get_pool(session));
+				if (rh->fh->samples_out < read_impl.samples_per_second * 3) {
+					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Discarding short file %s\n", rh->file);
+					switch_file_remove(rh->file, switch_core_session_get_pool(session));
+				}
 			}
 		}