Created attachment 181056 [details] git patch We have found and fixed a bug using PVS-Studio tool. PVS-Studio is a static code analyzer for C, C++ and C#: https://www.viva64.com/en/pvs-studio/ Analyzer warning: V547 Expression 'value < 0' is always false. Unsigned type value is never < 0. ar9300_xmit.c 450