V4L/DVB (4847): Drivers/media/dvb/frontends: kfree() cleanups

We don't have to check for NULL before kfree()
Acked-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/frontends/dvb-pll.c

@@ -478,7 +478,6 @@ EXPORT_SYMBOL(dvb_pll_configure);
 
 static int dvb_pll_release(struct dvb_frontend *fe)
 {
-	if (fe->tuner_priv)
 	kfree(fe->tuner_priv);
 	fe->tuner_priv = NULL;
 	return 0;

drivers/media/dvb/frontends/tda826x.c

@@ -42,7 +42,6 @@ struct tda826x_priv {
 
 static int tda826x_release(struct dvb_frontend *fe)
 {
-	if (fe->tuner_priv)
 	kfree(fe->tuner_priv);
 	fe->tuner_priv = NULL;
 	return 0;

drivers/media/dvb/frontends/tua6100.c

@@ -43,7 +43,6 @@ struct tua6100_priv {
 
 static int tua6100_release(struct dvb_frontend *fe)
 {
-	if (fe->tuner_priv)
 	kfree(fe->tuner_priv);
 	fe->tuner_priv = NULL;
 	return 0;