iwlwifi: mvm: remove unneeded NULL pointer check

mac80211 will never call rate_control_tx_status with a NULL
pointer for sta. Remove the superfluous check. This check
misled smatch.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 0d836fe..66e971a 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1225,7 +1225,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
        IWL_DEBUG_RATE(mvm, "reduced txpower: %d\n", reduced_txp);
 done:
        /* See if there's a better rate or modulation mode to try. */
-       if (sta && sta->supp_rates[info->band])
+       if (sta->supp_rates[info->band])
                rs_rate_scale_perform(mvm, sta, lq_sta, tid);
 }