drivers/media/common/siano/smsendian.c : eliminate unnecessary type conversions

remove unnecessary void* type casting.
Signed-off-by: Dong Chuanjian <chuanjian@nfschina.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/common/siano/smsendian.c

@@ -17,7 +17,7 @@
 void smsendian_handle_tx_message(void *buffer)
 {
 #ifdef __BIG_ENDIAN
-	struct sms_msg_data *msg = (struct sms_msg_data *)buffer;
+	struct sms_msg_data *msg = buffer;
 	int i;
 	int msg_words;