wl1271: Changed platform_device to be dynamically allocated

Changed platform_device to be allocated dynamically from the
wl1271_alloc_hw function. Also cleaned up error handling in the
wl1271_alloc_hw function and module probe functions.

Signed-off-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/wl12xx/wl1271_spi.c

@@ -422,7 +422,7 @@ static int __devinit wl1271_probe(struct spi_device *spi)
 	free_irq(wl->irq, wl);
 
  out_free:
-	ieee80211_free_hw(hw);
+	wl1271_free_hw(wl);
 
 	return ret;
 }
@@ -433,6 +433,7 @@ static int __devexit wl1271_remove(struct spi_device *spi)
 
 	free_irq(wl->irq, wl);
 
+	wl1271_unregister_hw(wl);
 	wl1271_free_hw(wl);
 
 	return 0;