static void rsi_handle_interrupt(struct sdio_func *function)
 {
        struct rsi_hw *adapter = sdio_get_drvdata(function);
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
 
        if (adapter->priv->fsm_state == FSM_FW_NOT_LOADED)
                return;
  */
 static void rsi_setclock(struct rsi_hw *adapter, u32 freq)
 {
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
        struct mmc_host *host = dev->pfunction->card->host;
        u32 clock;
 
  */
 static int rsi_setblocklength(struct rsi_hw *adapter, u32 length)
 {
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
        int status;
        rsi_dbg(INIT_ZONE, "%s: Setting the block length\n", __func__);
 
  */
 static int rsi_setupcard(struct rsi_hw *adapter)
 {
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
        int status = 0;
 
        rsi_setclock(adapter, 50000);
                           u32 addr,
                           u8 *data)
 {
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
        u8 fun_num = 0;
        int status;
 
                            u32 addr,
                            u8 *data)
 {
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
        int status = 0;
 
        if (likely(dev->sdio_irq_task != current))
                                           u8 *data,
                                           u16 count)
 {
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
        u32 status;
 
        if (likely(dev->sdio_irq_task != current))
                                     u8 *data,
                                     u16 count)
 {
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
        int status;
 
        if (dev->write_fail > 1) {
                                        u8 *pkt,
                                        u32 len)
 {
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
        u32 block_size = dev->tx_blk_size;
        u32 num_blocks, address, length;
        u32 queueno;
                goto fail_free_adapter;
        }
 
-       sdev = (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       sdev = adapter->rsi_dev;
        rsi_init_event(&sdev->rx_thread.event);
        status = rsi_create_kthread(adapter->priv, &sdev->rx_thread,
                                    rsi_sdio_rx_thread, "SDIO-RX-Thread");
        if (!adapter)
                return;
 
-       dev = (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       dev = adapter->rsi_dev;
 
        rsi_kill_thread(&dev->rx_thread);
        sdio_claim_host(pfunction);
 #ifdef CONFIG_PM
 static int rsi_set_sdio_pm_caps(struct rsi_hw *adapter)
 {
-       struct rsi_91x_sdiodev *dev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
        struct sdio_func *func = dev->pfunction;
        int ret;
 
                return -ENODEV;
        }
        common = adapter->priv;
-       sdev = (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       sdev = adapter->rsi_dev;
 
        if ((common->wow_flags & RSI_WOW_ENABLED) &&
            (common->wow_flags & RSI_WOW_NO_CONNECTION))
 {
        struct sdio_func *pfunction = dev_to_sdio_func(dev);
        struct rsi_hw *adapter = sdio_get_drvdata(pfunction);
-       struct rsi_91x_sdiodev *sdev =
-               (struct rsi_91x_sdiodev *)adapter->rsi_dev;
+       struct rsi_91x_sdiodev *sdev = adapter->rsi_dev;
        struct ieee80211_hw *hw = adapter->hw;
 
        rsi_dbg(ERR_ZONE, "SDIO Bus shutdown =====>\n");