Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[~shefty/rdma-dev.git] / drivers / net / wireless / ath / ath9k / eeprom_def.c
index c2b4bba7410c8dfb77caa9c76340cee4cc21c611..5bfa031545f498fd96db38f151e86828b20289db 100644 (file)
@@ -1063,15 +1063,19 @@ static void ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah,
        case 1:
                break;
        case 2:
-               scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
+               if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN)
+                       scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
+               else
+                       scaledPower = 0;
                break;
        case 3:
-               scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
+               if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN)
+                       scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
+               else
+                       scaledPower = 0;
                break;
        }
 
-       scaledPower = max((u16)0, scaledPower);
-
        if (IS_CHAN_2GHZ(chan)) {
                numCtlModes = ARRAY_SIZE(ctlModesFor11g) -
                        SUB_NUM_CTL_MODES_AT_2G_40;