Add some sanity checks to the calculations and make the REG_16 register write consistent
with the other ones.
Signed-off-by: Michael Buesch <m@xxxxxxx>
---
Index: linux/drivers/media/tuners/fc0011.c
===================================================================
--- linux.orig/drivers/media/tuners/fc0011.c 2012-10-22 16:15:46.000000000 +0200
+++ linux/drivers/media/tuners/fc0011.c 2012-10-22 16:17:15.280720317 +0200
@@ -220,6 +220,7 @@
/* Calc XIN. The PLL reference frequency is 18 MHz. */
xdiv = fvco / 18000;
+ WARN_ON(xdiv > 0xFF);
frac = fvco - xdiv * 18000;
frac = (frac << 15) / 18000;
if (frac >= 16384)
@@ -346,6 +347,8 @@
vco_cal &= FC11_VCOCAL_VALUEMASK;
switch (vco_sel) {
+ default:
+ WARN_ON(1);
case 0:
if (vco_cal < 8) {
regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
@@ -427,7 +430,8 @@
err = fc0011_writereg(priv, FC11_REG_RCCAL, regs[FC11_REG_RCCAL]);
if (err)
return err;
- err = fc0011_writereg(priv, FC11_REG_16, 0xB);
+ regs[FC11_REG_16] = 0xB;
+ err = fc0011_writereg(priv, FC11_REG_16, regs[FC11_REG_16]);
if (err)
return err;
--
Greetings, Michael.
PGP: 908D8B0E
Attachment:
signature.asc
Description: PGP signature
