drivers/net/adm8211.c: remove exceptional & on function name

In this file, function names are otherwise used as pointers without &.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier f;
@@

f(...) { ... }

@@
identifier r.f;
@@

- &f
+ f
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wireless/adm8211.c

@@ -1538,7 +1538,7 @@ static int adm8211_start(struct ieee80211_hw *dev)
 	adm8211_hw_init(dev);
 	adm8211_rf_set_channel(dev, priv->channel);
 
-	retval = request_irq(priv->pdev->irq, &adm8211_interrupt,
+	retval = request_irq(priv->pdev->irq, adm8211_interrupt,
 			     IRQF_SHARED, "adm8211", dev);
 	if (retval) {
 		printk(KERN_ERR "%s: failed to register IRQ handler\n",