Hi David, On Mon, 2016-10-17 at 07:40 +0000, David Binderman wrote: > Hello there, > > linux-4.9-rc1/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c:1561]: (style) Checking if unsigned variable 'len' is less than zero. > > Source code is > > len = min((size_t)le32_to_cpu(rsp->len) << 2, > iwl_rx_packet_payload_len(hcmd.resp_pkt) - sizeof(*rsp)); > len = min(len - delta, count); > if (len < 0) { > ret = -EFAULT; > goto out; > } > > Suggest improve error checking. Thanks for reporting! A fix for this is already queued in our internal tree and will be sent upstream soon. -- Cheers, Luca.