diff --git a/drivers/usb/media/sn9c102_core.c b/drivers/usb/media/sn9c102_core.c
index 898401cf7dcc..31d57400d5be 100644
--- a/drivers/usb/media/sn9c102_core.c
+++ b/drivers/usb/media/sn9c102_core.c
@@ -429,7 +429,7 @@ sn9c102_i2c_try_read(struct sn9c102_device* cam,
 }
 
 
-int 
+static int 
 sn9c102_i2c_try_write(struct sn9c102_device* cam,
                       struct sn9c102_sensor* sensor, u8 address, u8 value)
 {
@@ -785,7 +785,7 @@ static int sn9c102_stop_transfer(struct sn9c102_device* cam)
 }
 
 
-int sn9c102_stream_interrupt(struct sn9c102_device* cam)
+static int sn9c102_stream_interrupt(struct sn9c102_device* cam)
 {
 	int err = 0;
 
diff --git a/drivers/usb/media/sn9c102_sensor.h b/drivers/usb/media/sn9c102_sensor.h
index 16f7483559f0..6a7adebcb4bf 100644
--- a/drivers/usb/media/sn9c102_sensor.h
+++ b/drivers/usb/media/sn9c102_sensor.h
@@ -145,8 +145,6 @@ static const struct usb_device_id sn9c102_id_table[] = {                      \
 */
 
 /* The "try" I2C I/O versions are used when probing the sensor */
-extern int sn9c102_i2c_try_write(struct sn9c102_device*,struct sn9c102_sensor*,
-                                 u8 address, u8 value);
 extern int sn9c102_i2c_try_read(struct sn9c102_device*,struct sn9c102_sensor*,
                                 u8 address);