V4L/DVB (11685): gspca - gspca-m5602: Constify parameters of two functions

A number of parameters to some functions in the m5602 are constant and should be flagged as such.
Signed-off-by: Erik Andrén <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/m5602/m5602_bridge.h

@@ -148,10 +148,10 @@ struct sd {
 };
 
 int m5602_read_bridge(
-	struct sd *sd, u8 address, u8 *i2c_data);
+	struct sd *sd, const u8 address, u8 *i2c_data);
 
 int m5602_write_bridge(
-	struct sd *sd, u8 address, u8 i2c_data);
+	struct sd *sd, const u8 address, const u8 i2c_data);
 
 int m5602_write_sensor(struct sd *sd, const u8 address,
 		       u8 *i2c_data, const u8 len);

drivers/media/video/gspca/m5602/m5602_core.c

@@ -36,7 +36,7 @@ static const __devinitdata struct usb_device_id m5602_table[] = {
 MODULE_DEVICE_TABLE(usb, m5602_table);
 
 /* Reads a byte from the m5602 */
-int m5602_read_bridge(struct sd *sd, u8 address, u8 *i2c_data)
+int m5602_read_bridge(struct sd *sd, const u8 address, u8 *i2c_data)
 {
 	int err;
 	struct usb_device *udev = sd->gspca_dev.dev;
@@ -57,7 +57,7 @@ int m5602_read_bridge(struct sd *sd, u8 address, u8 *i2c_data)
 }
 
 /* Writes a byte to to the m5602 */
-int m5602_write_bridge(struct sd *sd, u8 address, u8 i2c_data)
+int m5602_write_bridge(struct sd *sd, const u8 address, const u8 i2c_data)
 {
 	int err;
 	struct usb_device *udev = sd->gspca_dev.dev;