From 3fc07953bae891c6adb08ef594cc9c527804c9c3 Mon Sep 17 00:00:00 2001 From: Arik Nemtsov Date: Sun, 1 Dec 2013 13:02:18 +0200 Subject: iwlwifi: trans: prevent tx and cmds during FW error Stop Tx and commands from arriving to the transport layer when a FW error has occurred. A HW recovery should take place before. Remove transport specific checks of the same nature (note that not all transports were protected). Signed-off-by: Arik Nemtsov Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/iwl-trans.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/net/wireless/iwlwifi/iwl-trans.h') diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 6419603..c71519d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -620,6 +620,9 @@ static inline int iwl_trans_send_cmd(struct iwl_trans *trans, { int ret; + if (unlikely(test_bit(STATUS_FW_ERROR, &trans->status))) + return -EIO; + if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) { IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); return -EIO; @@ -659,6 +662,9 @@ static inline void iwl_trans_free_tx_cmd(struct iwl_trans *trans, static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_device_cmd *dev_cmd, int queue) { + if (unlikely(test_bit(STATUS_FW_ERROR, &trans->status))) + return -EIO; + if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); -- cgit v1.1