V4L/DVB (5195): Frontends: make 4 functions static

This patch makes four needlessly global functions static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c
index 9348376..18768d2 100644
--- a/drivers/media/dvb/frontends/stv0299.c
+++ b/drivers/media/dvb/frontends/stv0299.c
@@ -92,7 +92,7 @@
 	return (ret != 1) ? -EREMOTEIO : 0;
 }
 
-int stv0299_write(struct dvb_frontend* fe, u8 *buf, int len)
+static int stv0299_write(struct dvb_frontend* fe, u8 *buf, int len)
 {
 	struct stv0299_state* state = fe->demodulator_priv;
 
diff --git a/drivers/media/dvb/frontends/tda10021.c b/drivers/media/dvb/frontends/tda10021.c
index dca8917..5b9c5bb 100644
--- a/drivers/media/dvb/frontends/tda10021.c
+++ b/drivers/media/dvb/frontends/tda10021.c
@@ -201,7 +201,7 @@
 	return 0;
 }
 
-int tda10021_write(struct dvb_frontend* fe, u8 *buf, int len)
+static int tda10021_write(struct dvb_frontend* fe, u8 *buf, int len)
 {
 	struct tda10021_state* state = fe->demodulator_priv;
 
diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c
index 00e4bcd..f4a9cf9 100644
--- a/drivers/media/dvb/frontends/tda1004x.c
+++ b/drivers/media/dvb/frontends/tda1004x.c
@@ -579,7 +579,7 @@
 	return -1;
 }
 
-int tda1004x_write(struct dvb_frontend* fe, u8 *buf, int len)
+static int tda1004x_write(struct dvb_frontend* fe, u8 *buf, int len)
 {
 	struct tda1004x_state* state = fe->demodulator_priv;
 
diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c
index 0e9b59a..a1b0afb 100644
--- a/drivers/media/dvb/frontends/zl10353.c
+++ b/drivers/media/dvb/frontends/zl10353.c
@@ -54,7 +54,7 @@
 	return 0;
 }
 
-int zl10353_write(struct dvb_frontend *fe, u8 *ibuf, int ilen)
+static int zl10353_write(struct dvb_frontend *fe, u8 *ibuf, int ilen)
 {
 	int err, i;
 	for (i = 0; i < ilen - 1; i++)