ath5k: remove redundant null check before kfree()

kfree() null-checks its argument.
Found by smatch.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
index 7106547..66b6366 100644 (file)
--- a/drivers/net/wireless/ath/ath5k/attach.c
+++ b/drivers/net/wireless/ath/ath5k/attach.c
@@ -351,8 +351,7 @@ void ath5k_hw_deinit(struct ath5k_hw *ah)
 {
        __set_bit(ATH_STAT_INVALID, ah->status);
 
-       if (ah->ah_rf_banks != NULL)
-               kfree(ah->ah_rf_banks);
+       kfree(ah->ah_rf_banks);
 
        ath5k_eeprom_detach(ah);