[B43]: Fix sparse warnings.

The remaining warning in phy.c will be fixed later.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index e6174b6..0bd6f8a 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -121,10 +121,12 @@
 	__u8 *raw = plcp->raw;
 
 	if (b43_is_ofdm_rate(bitrate)) {
-		*data = b43_plcp_get_ratecode_ofdm(bitrate);
+		u32 d;
+
+		d = b43_plcp_get_ratecode_ofdm(bitrate);
 		B43_WARN_ON(octets & 0xF000);
-		*data |= (octets << 5);
-		*data = cpu_to_le32(*data);
+		d |= (octets << 5);
+		*data = cpu_to_le32(d);
 	} else {
 		u32 plen;