[media] fc0011: Return early, if the frequency is already tuned

Return early, if we already tuned to a frequency.
Signed-off-by: NMichael Buesch <m@bues.ch>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/tuners/fc0011.c

@@ -187,6 +187,9 @@ static int fc0011_set_params(struct dvb_frontend *fe)
 	u8 fa, fp, vco_sel, vco_cal;
 	u8 regs[FC11_NR_REGS] = { };
 
+	if (priv->frequency == p->frequency)
+		return 0;
+
 	regs[FC11_REG_7] = 0x0F;
 	regs[FC11_REG_8] = 0x3E;
 	regs[FC11_REG_10] = 0xB8;