[media] drivers/media/usb/dvb-usb-v2: constify mxl111sf_demod_config structure

---
 drivers/media/usb/dvb-usb-v2/mxl111sf-demod.c | 4 ++--
 drivers/media/usb/dvb-usb-v2/mxl111sf-demod.h | 4 ++--
 drivers/media/usb/dvb-usb-v2/mxl111sf.c       | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)
 
diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf-demod.c b/drivers/media/usb/dvb-usb-v2/mxl111sf-demod.c
index ea37536..84f6de6 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf-demod.c
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf-demod.c
@@ -35,7 +35,7 @@ MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able)).");
 struct mxl111sf_demod_state {
 	struct mxl111sf_state *mxl_state;
 
-	struct mxl111sf_demod_config *cfg;
+	const struct mxl111sf_demod_config *cfg;
 
 	struct dvb_frontend fe;
 };
@@ -579,7 +579,7 @@ static struct dvb_frontend_ops mxl111sf_demod_ops = {
 };
 
 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
-					   struct mxl111sf_demod_config *cfg)
+				   const struct mxl111sf_demod_config *cfg)
 {
 	struct mxl111sf_demod_state *state = NULL;
 
diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf-demod.h b/drivers/media/usb/dvb-usb-v2/mxl111sf-demod.h
index 0bd83e5..7065aca 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf-demod.h
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf-demod.h
@@ -35,11 +35,11 @@ struct mxl111sf_demod_config {
 #if IS_ENABLED(CONFIG_DVB_USB_MXL111SF)
 extern
 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
-					   struct mxl111sf_demod_config *cfg);
+				   const struct mxl111sf_demod_config *cfg);
 #else
 static inline
 struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
-					   struct mxl111sf_demod_config *cfg)
+				   const struct mxl111sf_demod_config *cfg)
 {
 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 	return NULL;
diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf.c b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
index b71b2e6..1710f90 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf.c
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
@@ -731,7 +731,7 @@ fail:
 	return ret;
 }
 
-static struct mxl111sf_demod_config mxl_demod_config = {
+static const struct mxl111sf_demod_config mxl_demod_config = {
 	.read_reg        = mxl111sf_read_reg,
 	.write_reg       = mxl111sf_write_reg,
 	.program_regs    = mxl111sf_ctrl_program_regs,