mwifiex: handle an error path correctly

In failure case locks are not allocated in mwifiex_register().
So mwifiex_free_lock_list() routine call becomes redundant.
Also we don't need to check return type for mwifiex_init_lock_list()
routine. It never fails.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/main.c

@@ -75,8 +75,7 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
 	adapter->priv_num++;
 
 	adapter->priv[0]->adapter = adapter;
-	if (mwifiex_init_lock_list(adapter))
-		goto error;
+	mwifiex_init_lock_list(adapter);
 
 	init_timer(&adapter->cmd_timer);
 	adapter->cmd_timer.function = mwifiex_cmd_timeout_func;
@@ -87,8 +86,6 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
 error:
 	dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n");
 
-	mwifiex_free_lock_list(adapter);
-
 	for (i = 0; i < adapter->priv_num; i++)
 		kfree(adapter->priv[i]);