On 08/02/2009 03:23 PM, Joerg Albert wrote:
After
ifconfig wlan1 down
iwconfig wlan1 mode managed essid huhu
ifconfig wlan1 up
ifconfig wlan1 down
iwconfig wlan1 mode ad-hoc essid huhu_a channel 1
ar9170 crashes (see below for the syslog).
It seems like ar9170_op_bss_info_changed() is called with ar->vif == NULL
(i.e. ((struct ar9170 *)hw->priv)->vif == NULL), while parameter vif !=
NULL and
changed & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED) is non-zero.
ar->vif is passed unchecked to ieee80211_beacon_get().
Is this something ar9170 is supposed to handle or a bug in
cfg80211/mac80211?
Is a driver's *bss_info_changed proc called while the netdev is closed?
It looks like ar->vif is set to NULL by ar9170_remove_interface() and the one call
of ar9170_op_bss_info_changed() when ad-hoc is configured has changed==BSS_CHANGED_BEACON_ENABLED
with bss_info->enable_beacon == 0.
So it's a bug in the ar9170. I'll try to post a patch.
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
