diff options
| author | Christian Lamparter <chunkeey@googlemail.com> | 2009-09-29 22:47:25 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-09-30 01:25:16 +0400 |
| commit | e16c1bb67a0010b5bad26ddc3e691655fd7456e3 (patch) | |
| tree | d051731baf91baced7b3811ceab61ec94b005912 | |
| parent | 78bd6bbf3c12f49e2cb6897bfd73a62325ed3aaa (diff) | |
| download | linux-e16c1bb67a0010b5bad26ddc3e691655fd7456e3.tar.xz | |
ar9170: fix bug in iq-auto calibration value calculation
This patch fixes a embarrassing bug which was introduced by:
"[PATCH] ar9170: implement frequency calibration for one-stage/openfw"
The phy_data variable initialization has to done outside the for-loop
scope. This is because the for-loop uses u32 phy_data variable more
like a 4-byte field. But in each run only a single byte is calculated.
Therefore phy_data content needs to stay the same for at least 3 more
iterations, before the complete set can be uploaded.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath/ar9170/phy.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ar9170/phy.c b/drivers/net/wireless/ath/ar9170/phy.c index b3e5cf3735b0..dbd488da18b1 100644 --- a/drivers/net/wireless/ath/ar9170/phy.c +++ b/drivers/net/wireless/ath/ar9170/phy.c @@ -1141,7 +1141,8 @@ static int ar9170_set_freq_cal_data(struct ar9170 *ar, u8 vpds[2][AR5416_PD_GAIN_ICEPTS]; u8 pwrs[2][AR5416_PD_GAIN_ICEPTS]; int chain, idx, i; - u8 f; + u32 phy_data = 0; + u8 f, tmp; switch (channel->band) { case IEEE80211_BAND_2GHZ: @@ -1208,9 +1209,6 @@ static int ar9170_set_freq_cal_data(struct ar9170 *ar, } for (i = 0; i < 76; i++) { - u32 phy_data; - u8 tmp; - if (i < 25) { tmp = ar9170_interpolate_val(i, &pwrs[0][0], &vpds[0][0]); |