iwlwifi: keep track of bt coex enable/disable stage
For debugging purpose, keep track of the bt coex enable/disable state.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
index a358d43..a6dbd89 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c
@@ -856,6 +856,9 @@
if (!iwl_is_alive(priv))
return -EAGAIN;
+ if (!priv->bt_enable_flag)
+ return -EINVAL;
+
/* make request to uCode to retrieve statistics information */
mutex_lock(&priv->mutex);
ret = iwl_send_statistics_request(priv, CMD_SYNC, false);