ath9k: Fix kernel panic during driver initilization
mwifiex: add NULL checks in driver unload path
bcma: don't fail for bad SPROM CRC
zd1211rw: firmware needs duration_id set to zero for non-pspoll frames
mac80211: Fix a rwlock bad magic bug
rtlwifi: Modify rtl_pci_init to return 0 on success
