[PATCH] ath9k:remove unneeded variable in ath9k_dump_legacy_btcoex

[zhangkun4jr]

From: Zhang Kun <zhang...@cdjrlc.com>

Remove unneeded variable 'len' in ath9k_dump_legacy_btcoex.

Signed-off-by: Zhang Kun <zhang...@cdjrlc.com>
---
 drivers/net/wireless/ath/ath9k/gpio.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/gpio.c 
b/drivers/net/wireless/ath/ath9k/gpio.c
index b457e52dd365..09ec937024c0 100644
--- a/drivers/net/wireless/ath/ath9k/gpio.c
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
@@ -496,16 +496,14 @@ static int ath9k_dump_mci_btcoex(struct ath_softc *sc, u8 
*buf, u32 size)
 
 static int ath9k_dump_legacy_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
 {
-
        struct ath_btcoex *btcoex = &sc->btcoex;
-       u32 len = 0;
 
        ATH_DUMP_BTCOEX("Stomp Type", btcoex->bt_stomp_type);
        ATH_DUMP_BTCOEX("BTCoex Period (msec)", btcoex->btcoex_period);
        ATH_DUMP_BTCOEX("Duty Cycle", btcoex->duty_cycle);
        ATH_DUMP_BTCOEX("BT Wait time", btcoex->bt_wait_time);
 
-       return len;
+       return 0;
 }
 
 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
-- 
2.17.1