ath5k: initialize default noise floor

Initialize noise floor variable with a default of -95. This was used
uninitialized in the signal strength (RSSI -> dBm) conversion until the first
noise floor calibration was completed.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
index dd4099a2ff15..f80d3d52c536 100644
--- a/drivers/net/wireless/ath/ath5k/attach.c
+++ b/drivers/net/wireless/ath/ath5k/attach.c
@@ -123,6 +123,7 @@ int ath5k_hw_attach(struct ath5k_softc *sc)
         ah->ah_limit_tx_retries = AR5K_INIT_TX_RETRY;
         ah->ah_software_retry = false;
         ah->ah_ant_mode = AR5K_ANTMODE_DEFAULT;
+        ah->ah_noise_floor = -95;       /* until first NF calibration is run */
 
         /*
          * Find the mac version