wireless: wl1251: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ti/wl1251/spi.c

@@ -243,7 +243,7 @@ static int wl1251_spi_probe(struct spi_device *spi)
 	struct wl1251 *wl;
 	int ret;
 
-	pdata = spi->dev.platform_data;
+	pdata = dev_get_platdata(&spi->dev);
 	if (!pdata) {
 		wl1251_error("no platform data");
 		return -ENODEV;