[media] cx231xx: just return 0 instead of using a var

Instead of allocating a var to store 0 and just return it,
change the code to return 0 directly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/usb/cx231xx/cx231xx-dvb.c

@@ -403,8 +403,6 @@ static int attach_xc5000(u8 addr, struct cx231xx *dev)
 
 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
 {
-	int status = 0;
-
 	if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 
 		struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
@@ -423,7 +421,7 @@ int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
 
 	}
 
-	return status;
+	return 0;
 }
 
 int cx231xx_reset_analog_tuner(struct cx231xx *dev)