drivers/net/wireless/p54: Use kmemdup

Use kmemdup when some other buffer is immediately copied into the
allocated region.

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

// <smpl>
@@
expression from,to,size,flag;
statement S;
@@

-  to = \(kmalloc\|kzalloc\)(size,flag);
+  to = kmemdup(from,size,flag);
   if (to==NULL || ...) S
-  memcpy(to, from, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/p54/eeprom.c b/drivers/net/wireless/p54/eeprom.c
index 187e263..e51650e 100644
--- a/drivers/net/wireless/p54/eeprom.c
+++ b/drivers/net/wireless/p54/eeprom.c
@@ -599,13 +599,13 @@
 			}
 			break;
 		case PDR_PRISM_ZIF_TX_IQ_CALIBRATION:
-			priv->iq_autocal = kmalloc(data_len, GFP_KERNEL);
+			priv->iq_autocal = kmemdup(entry->data, data_len,
+						   GFP_KERNEL);
 			if (!priv->iq_autocal) {
 				err = -ENOMEM;
 				goto err;
 			}
 
-			memcpy(priv->iq_autocal, entry->data, data_len);
 			priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry);
 			break;
 		case PDR_DEFAULT_COUNTRY: