aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/iwlwifi/iwl-eeprom.c
diff options
context:
space:
mode:
authorReinette Chatre <reinette.chatre@intel.com>2009-12-14 14:12:13 -0800
committerJohn W. Linville <linville@tuxdriver.com>2009-12-21 11:32:14 -0500
commit6c3069b1e7e983e176a5f826e2edffefdd404a08 (patch)
tree7e0b84234ecdac2912ea5e794412f2c56f2d499f /drivers/net/wireless/iwlwifi/iwl-eeprom.c
parentdc57a303faab8562b92e85df0d79c4a05d7e2a61 (diff)
downloadkernel_samsung_smdk4412-6c3069b1e7e983e176a5f826e2edffefdd404a08.zip
kernel_samsung_smdk4412-6c3069b1e7e983e176a5f826e2edffefdd404a08.tar.gz
kernel_samsung_smdk4412-6c3069b1e7e983e176a5f826e2edffefdd404a08.tar.bz2
iwlwifi: fix 40MHz operation setting on cards that do not allow it
Some devices have 40MHz operation disabled entirely. Ensure that driver do not enable 40MHz operation if a channel does not allow this. This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2135 Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-eeprom.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-eeprom.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index 08ad6e4..4a30969 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -749,7 +749,8 @@ static int iwl_mod_ht40_chan_info(struct iwl_priv *priv,
ch_info->ht40_eeprom = *eeprom_ch;
ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg;
ch_info->ht40_flags = eeprom_ch->flags;
- ch_info->ht40_extension_channel &= ~clear_ht40_extension_channel;
+ if (eeprom_ch->flags & EEPROM_CHANNEL_VALID)
+ ch_info->ht40_extension_channel &= ~clear_ht40_extension_channel;
return 0;
}