root@XXX-ubuntu:~# uname -a
Linux pekker-ubuntu 3.5.0-32-generic #53~precise1-Ubuntu SMP Wed May 29 20:33:37 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

root@XXX-ubuntu:~# lspci
03:02.0 Network controller: Atheros Communications Inc. AR9227 Wireless Network Adapter (rev 01)

root@XXX-ubuntu:~# modprobe ath9k
WARNING: Error inserting ath9k_hw (/lib/modules/3.5.0-32-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_hw.ko): Invalid argument
WARNING: Error inserting ath9k_common (/lib/modules/3.5.0-32-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_common.ko): Invalid argument
WARNING: Error inserting mac80211 (/lib/modules/3.5.0-32-generic/updates/net/mac80211/mac80211.ko): Invalid argument
FATAL: Error inserting ath9k (/lib/modules/3.5.0-32-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko): Invalid argument

root@XXX-ubuntu:~# dmsg
[ 1933.139951] ath: disagrees about version of symbol wiphy_apply_custom_regulatory
[ 1933.139956] ath: Unknown symbol wiphy_apply_custom_regulatory (err -22)
[ 1933.139976] ath: disagrees about version of symbol freq_reg_info
[ 1933.139978] ath: Unknown symbol freq_reg_info (err -22)