diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2012-08-27 17:00:07 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-09-05 14:53:32 -0400 |
| commit | 51dea9be7e01d7e825ed1882246693f09c21374c (patch) | |
| tree | 1b39489085cc55c0276a29c8eb58ecd39e974b93 /drivers/net/wireless/ath/ath9k/link.c | |
| parent | 1630d25fd00f195f0923d4b895e0529fdbba83c3 (diff) | |
| download | linux-stable-51dea9be7e01d7e825ed1882246693f09c21374c.tar.gz linux-stable-51dea9be7e01d7e825ed1882246693f09c21374c.tar.bz2 linux-stable-51dea9be7e01d7e825ed1882246693f09c21374c.zip | |
ath9k: fix PA linearization calibration related crash
Before PAPRD training can run, the card needs to have sent a packet for
thermal calibration. Sending a dummy packet with the PAPRD training flag
set causes a crash under some circumstance.
Fix the code by replacing the dummy tx with a delay that waits for a
real packet tx to have occurred.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/link.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/link.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c index 1c241921f95e..825a29cc9313 100644 --- a/drivers/net/wireless/ath/ath9k/link.c +++ b/drivers/net/wireless/ath/ath9k/link.c @@ -256,7 +256,7 @@ void ath_paprd_calibrate(struct work_struct *work) int len = 1800; int ret; - if (!caldata) + if (!caldata || !caldata->paprd_packet_sent || caldata->paprd_done) return; ath9k_ps_wakeup(sc); @@ -283,13 +283,6 @@ void ath_paprd_calibrate(struct work_struct *work) continue; chain_ok = 0; - - ath_dbg(common, CALIBRATE, - "Sending PAPRD frame for thermal measurement on chain %d\n", - chain); - if (!ath_paprd_send_frame(sc, skb, chain)) - goto fail_paprd; - ar9003_paprd_setup_gain_table(ah, chain); ath_dbg(common, CALIBRATE, |