iwlagn: block regular host commands if driver don't own uCode

The only host command allow to send to uCode is the one initiated from
testmode if testmode is the owner of uCode

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index b62d03235b8c..9b07e07f1689 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -328,6 +328,12 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
                 return -EIO;
         }
 
+        if ((priv->ucode_owner == IWL_OWNERSHIP_TM) &&
+            !(cmd->flags & CMD_ON_DEMAND)) {
+                IWL_DEBUG_HC(priv, "tm own the uCode, no regular hcmd send\n");
+                return -EIO;
+        }
+
         copy_size = sizeof(out_cmd->hdr);
         cmd_size = sizeof(out_cmd->hdr);