* [PATCH 2/4] fc0011: Fix xin value clamping
@ 2013-02-07 16:16 Michael Büsch
0 siblings, 0 replies; only message in thread
From: Michael Büsch @ 2013-02-07 16:16 UTC (permalink / raw)
To: Mauro Carvalho Chehab; +Cc: linux-media
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Fix the xin value clamping and use clamp_t().
Signed-off-by: Michael Buesch <m@bues.ch>
---
Index: linux/drivers/media/tuners/fc0011.c
===================================================================
--- linux.orig/drivers/media/tuners/fc0011.c 2012-10-22 16:13:29.140465225 +0200
+++ linux/drivers/media/tuners/fc0011.c 2012-10-22 16:15:46.915056243 +0200
@@ -183,8 +183,7 @@
unsigned int i, vco_retries;
u32 freq = p->frequency / 1000;
u32 bandwidth = p->bandwidth_hz / 1000;
- u32 fvco, xin, xdiv, xdivr;
- u16 frac;
+ u32 fvco, xin, frac, xdiv, xdivr;
u8 fa, fp, vco_sel, vco_cal;
u8 regs[FC11_NR_REGS] = { };
@@ -227,12 +226,8 @@
frac += 32786;
if (!frac)
xin = 0;
- else if (frac < 511)
- xin = 512;
- else if (frac < 65026)
- xin = frac;
else
- xin = 65024;
+ xin = clamp_t(u32, frac, 512, 65024);
regs[FC11_REG_XINHI] = xin >> 8;
regs[FC11_REG_XINLO] = xin;
--
Greetings, Michael.
PGP: 908D8B0E
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