[media] m920x: 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/m920x.c b/drivers/media/dvb/dvb-usb/m920x.c
index c3e461e..a1e1287 100644
--- a/drivers/media/dvb/dvb-usb/m920x.c
+++ b/drivers/media/dvb/dvb-usb/m920x.c
@@ -501,9 +501,10 @@
 {
 	deb("%s\n",__func__);
 
-	if ((adap->fe_adap[0].fe = dvb_attach(mt352_attach,
-				   &m920x_mt352_config,
-				   &adap->dev->i2c_adap)) == NULL)
+	adap->fe_adap[0].fe = dvb_attach(mt352_attach,
+					 &m920x_mt352_config,
+					 &adap->dev->i2c_adap);
+	if ((adap->fe_adap[0].fe) == NULL)
 		return -EIO;
 
 	return 0;
@@ -513,9 +514,10 @@
 {
 	deb("%s\n",__func__);
 
-	if ((adap->fe_adap[0].fe = dvb_attach(tda10046_attach,
-				   &m920x_tda10046_08_config,
-				   &adap->dev->i2c_adap)) == NULL)
+	adap->fe_adap[0].fe = dvb_attach(tda10046_attach,
+					 &m920x_tda10046_08_config,
+					 &adap->dev->i2c_adap);
+	if ((adap->fe_adap[0].fe) == NULL)
 		return -EIO;
 
 	return 0;
@@ -525,9 +527,10 @@
 {
 	deb("%s\n",__func__);
 
-	if ((adap->fe_adap[0].fe = dvb_attach(tda10046_attach,
-				   &m920x_tda10046_0b_config,
-				   &adap->dev->i2c_adap)) == NULL)
+	adap->fe_adap[0].fe = dvb_attach(tda10046_attach,
+					 &m920x_tda10046_0b_config,
+					 &adap->dev->i2c_adap);
+	if ((adap->fe_adap[0].fe) == NULL)
 		return -EIO;
 
 	return 0;