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>
diff --git a/drivers/media/dvb/frontends/dvb-pll.c b/drivers/media/dvb/frontends/dvb-pll.c
index b7e7108..78114fc 100644
--- a/drivers/media/dvb/frontends/dvb-pll.c
+++ b/drivers/media/dvb/frontends/dvb-pll.c
@@ -478,8 +478,7 @@
 
 static int dvb_pll_release(struct dvb_frontend *fe)
 {
-	if (fe->tuner_priv)
-		kfree(fe->tuner_priv);
+	kfree(fe->tuner_priv);
 	fe->tuner_priv = NULL;
 	return 0;
 }
diff --git a/drivers/media/dvb/frontends/tda826x.c b/drivers/media/dvb/frontends/tda826x.c
index 34815b0..4f01d7b 100644
--- a/drivers/media/dvb/frontends/tda826x.c
+++ b/drivers/media/dvb/frontends/tda826x.c
@@ -42,8 +42,7 @@
 
 static int tda826x_release(struct dvb_frontend *fe)
 {
-	if (fe->tuner_priv)
-		kfree(fe->tuner_priv);
+	kfree(fe->tuner_priv);
 	fe->tuner_priv = NULL;
 	return 0;
 }
diff --git a/drivers/media/dvb/frontends/tua6100.c b/drivers/media/dvb/frontends/tua6100.c
index 8855439..6ba0029 100644
--- a/drivers/media/dvb/frontends/tua6100.c
+++ b/drivers/media/dvb/frontends/tua6100.c
@@ -43,8 +43,7 @@
 
 static int tua6100_release(struct dvb_frontend *fe)
 {
-	if (fe->tuner_priv)
-		kfree(fe->tuner_priv);
+	kfree(fe->tuner_priv);
 	fe->tuner_priv = NULL;
 	return 0;
 }