iwlwifi: mvm: correct rate_idx bounds-check

The upper bound IWL_RATE_COUNT_LEGACY should be used
with a >= check, rejecting the value itself; fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index e0c9065..ef4bdfc 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -346,7 +346,7 @@ void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd *tx_cmd,
 
        rate_idx = info->control.rates[0].idx;
        /* if the rate isn't a well known legacy rate, take the lowest one */
-       if (rate_idx < 0 || rate_idx > IWL_RATE_COUNT_LEGACY)
+       if (rate_idx < 0 || rate_idx >= IWL_RATE_COUNT_LEGACY)
                rate_idx = rate_lowest_index(
                                &mvm->nvm_data->bands[info->band], sta);