drivers/net: eliminate irq handler impossible checks, needless casts

[deliverable/linux.git] / drivers / net / wireless / wl3501_cs.c

diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index a1430352169b7764a2d51052ff30a2324c3ba609..5b98a7876982a528e56f819016457bc4359a6d54 100644 (file)
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -1155,25 +1155,18 @@ static inline void wl3501_ack_interrupt(struct wl3501_card *this)
  */
 static irqreturn_t wl3501_interrupt(int irq, void *dev_id)
 {
-       struct net_device *dev = (struct net_device *)dev_id;
+       struct net_device *dev = dev_id;
        struct wl3501_card *this;
-       int handled = 1;
 
-       if (!dev)
-               goto unknown;
-       this = dev->priv;
+       this = netdev_priv(dev);
        spin_lock(&this->lock);
        wl3501_ack_interrupt(this);
        wl3501_block_interrupt(this);
        wl3501_rx_interrupt(dev);
        wl3501_unblock_interrupt(this);
        spin_unlock(&this->lock);
-out:
-       return IRQ_RETVAL(handled);
-unknown:
-       handled = 0;
-       printk(KERN_ERR "%s: irq %d for unknown device.\n", __FUNCTION__, irq);
-       goto out;
+
+       return IRQ_HANDLED;
 }
 
 static int wl3501_reset_board(struct wl3501_card *this)