[media] digitv: fix ERROR: do not use assignment in if condition

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/dvb-usb/digitv.c b/drivers/media/dvb/dvb-usb/digitv.c
index edabdae..f718411 100644
--- a/drivers/media/dvb/dvb-usb/digitv.c
+++ b/drivers/media/dvb/dvb-usb/digitv.c
@@ -137,11 +137,16 @@
 {
 	struct digitv_state *st = adap->dev->priv;
 
-	if ((adap->fe_adap[0].fe = dvb_attach(mt352_attach, &digitv_mt352_config, &adap->dev->i2c_adap)) != NULL) {
+	adap->fe_adap[0].fe = dvb_attach(mt352_attach, &digitv_mt352_config,
+					 &adap->dev->i2c_adap);
+	if ((adap->fe_adap[0].fe) != NULL) {
 		st->is_nxt6000 = 0;
 		return 0;
 	}
-	if ((adap->fe_adap[0].fe = dvb_attach(nxt6000_attach, &digitv_nxt6000_config, &adap->dev->i2c_adap)) != NULL) {
+	adap->fe_adap[0].fe = dvb_attach(nxt6000_attach,
+					 &digitv_nxt6000_config,
+					 &adap->dev->i2c_adap);
+	if ((adap->fe_adap[0].fe) != NULL) {
 		st->is_nxt6000 = 1;
 		return 0;
 	}