diff options
| author | Philip Guenthe <guenther@cvs.openbsd.org> | 2009-06-02 12:09:27 +0000 |
|---|---|---|
| committer | Philip Guenthe <guenther@cvs.openbsd.org> | 2009-06-02 12:09:27 +0000 |
| commit | f02b189f64fff76ecbc81e0d55b4fe65db8d6b2d (patch) | |
| tree | ac718d48d2a9c0825ee14ca606ae2190afbb5f6d /sys/dev/ic/ar5211.c | |
| parent | 535ef74bd2a86e24c4d3364d46e06886231aed2e (diff) | |
If a bogus channel is encountered, return an error instead of trying
to use the -1 flag value as an array index.
Found by Parfait.
ok reyk@ oga@
Diffstat (limited to 'sys/dev/ic/ar5211.c')
| -rw-r--r-- | sys/dev/ic/ar5211.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/sys/dev/ic/ar5211.c b/sys/dev/ic/ar5211.c index 5d55e3a63c0..ffeb024e000 100644 --- a/sys/dev/ic/ar5211.c +++ b/sys/dev/ic/ar5211.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ar5211.c,v 1.42 2009/02/06 17:06:45 grange Exp $ */ +/* $OpenBSD: ar5211.c,v 1.43 2009/06/02 12:09:26 guenther Exp $ */ /* * Copyright (c) 2004, 2005, 2006, 2007 Reyk Floeter <reyk@openbsd.org> @@ -29,7 +29,7 @@ HAL_BOOL ar5k_ar5211_nic_reset(struct ath_hal *, u_int32_t); HAL_BOOL ar5k_ar5211_nic_wakeup(struct ath_hal *, u_int16_t); u_int16_t ar5k_ar5211_radio_revision(struct ath_hal *, HAL_CHIP); void ar5k_ar5211_fill(struct ath_hal *); -void ar5k_ar5211_rfregs(struct ath_hal *, HAL_CHANNEL *, u_int, +HAL_BOOL ar5k_ar5211_rfregs(struct ath_hal *, HAL_CHANNEL *, u_int, u_int); /* @@ -480,7 +480,8 @@ ar5k_ar5211_reset(struct ath_hal *hal, HAL_OPMODE op_mode, HAL_CHANNEL *channel, /* * Write initial RF registers */ - ar5k_ar5211_rfregs(hal, channel, freq, ee_mode); + if (ar5k_ar5211_rfregs(hal, channel, freq, ee_mode) == AH_FALSE) + return (AH_FALSE); /* * Write initial mode settings @@ -2556,7 +2557,7 @@ ar5k_ar5211_eeprom_write(struct ath_hal *hal, u_int32_t offset, u_int16_t data) * RF register settings */ -void +HAL_BOOL ar5k_ar5211_rfregs(struct ath_hal *hal, HAL_CHANNEL *channel, u_int freq, u_int ee_mode) { @@ -2587,6 +2588,10 @@ ar5k_ar5211_rfregs(struct ath_hal *hal, HAL_CHANNEL *channel, u_int freq, (channel->c_channel > 4000 ? 0 : -1))); } + /* bogus channel: bad beacon? */ + if (obdb < 0) + return (AH_FALSE); + ob = ee->ee_ob[ee_mode][obdb]; db = ee->ee_db[ee_mode][obdb]; x_gain = ee->ee_x_gain[ee_mode]; @@ -2613,6 +2618,8 @@ ar5k_ar5211_rfregs(struct ath_hal *hal, HAL_CHANNEL *channel, u_int freq, } hal->ah_rf_gain = HAL_RFGAIN_INACTIVE; + + return (AH_TRUE); } HAL_BOOL |