X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fiwlegacy%2Fiwl-hcmd.c;h=62b4b09122cbac4489561a0a1428cc70d7a5b538;hb=22450902e4a13479acf6f4e93475af7ca1829d92;hp=9d721cbda5bb04560e62fca55a5a25d767369acf;hpb=28a6e577c65cc317fed5265efc43ce9282928bd4;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/net/wireless/iwlegacy/iwl-hcmd.c b/drivers/net/wireless/iwlegacy/iwl-hcmd.c
index 9d721cbda5bb..62b4b09122cb 100644
--- a/drivers/net/wireless/iwlegacy/iwl-hcmd.c
+++ b/drivers/net/wireless/iwlegacy/iwl-hcmd.c
@@ -145,6 +145,8 @@ int iwl_legacy_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 	int cmd_idx;
 	int ret;
 
+	lockdep_assert_held(&priv->mutex);
+
 	BUG_ON(cmd->flags & CMD_ASYNC);
 
 	 /* A synchronous command can not have a callback set. */
@@ -152,7 +154,6 @@ int iwl_legacy_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 
 	IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
 			iwl_legacy_get_cmd_string(cmd->id));
-	mutex_lock(&priv->sync_cmd_mutex);
 
 	set_bit(STATUS_HCMD_ACTIVE, &priv->status);
 	IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
@@ -224,7 +225,6 @@ fail:
 		cmd->reply_page = 0;
 	}
 out:
-	mutex_unlock(&priv->sync_cmd_mutex);
 	return ret;
 }
 EXPORT_SYMBOL(iwl_legacy_send_cmd_sync);