--- zzzz-none-000/linux-3.10.107/drivers/media/dvb-frontends/si21xx.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/media/dvb-frontends/si21xx.c	2021-02-04 17:41:59.000000000 +0000
@@ -236,6 +236,9 @@
 				.len = len + 1
 	};
 
+	if (len > sizeof(buf) - 1)
+		return -EINVAL;
+
 	msg.buf[0] =  reg1;
 	memcpy(msg.buf + 1, data, len);
 
@@ -407,7 +410,7 @@
 }
 
 static int si21xx_send_diseqc_burst(struct dvb_frontend *fe,
-						fe_sec_mini_cmd_t burst)
+				    enum fe_sec_mini_cmd burst)
 {
 	struct si21xx_state *state = fe->demodulator_priv;
 	u8 val;
@@ -431,7 +434,7 @@
 	return 0;
 }
 /*	30.06.2008 */
-static int si21xx_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
+static int si21xx_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
 {
 	struct si21xx_state *state = fe->demodulator_priv;
 	u8 val;
@@ -451,7 +454,7 @@
 	}
 }
 
-static int si21xx_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t volt)
+static int si21xx_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage volt)
 {
 	struct si21xx_state *state = fe->demodulator_priv;
 
@@ -533,7 +536,7 @@
 
 }
 
-static int si21_read_status(struct dvb_frontend *fe, fe_status_t *status)
+static int si21_read_status(struct dvb_frontend *fe, enum fe_status *status)
 {
 	struct si21xx_state *state = fe->demodulator_priv;
 	u8 regs_read[2];
@@ -638,7 +641,7 @@
 /*	initiates a channel acquisition sequence
 	using the specified symbol rate and code rate */
 static int si21xx_setacquire(struct dvb_frontend *fe, int symbrate,
-						fe_code_rate_t crate)
+			     enum fe_code_rate crate)
 {
 
 	struct si21xx_state *state = fe->demodulator_priv;