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asiliantfb: fix test of unsigned in asiliant_calc_dclk2()

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Ftarget, Fret, n and m are unsigned so the tests did not work.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Andres Salomon <dilinger@debian.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Roel Kluin 2010-03-10 15:21:23 -08:00 committed by Linus Torvalds
parent 6e3e37a5a7
commit 0d3580d40c
1 changed files with 2 additions and 2 deletions
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4
drivers/video/asiliantfb.c
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@ -140,7 +140,7 @@ static void asiliant_calc_dclk2(u32 *ppixclock, u8 *dclk2_m, u8 *dclk2_n, u8 *dc
/* 3 <= m <= 257 */
if (m >= 3 && m <= 257) {
unsigned new_error = ((Ftarget * n) - (Fref * m)) >= 0 ?
unsigned new_error = Ftarget * n >= Fref * m ?
((Ftarget * n) - (Fref * m)) : ((Fref * m) - (Ftarget * n));
if (new_error < best_error) {
best_n = n;
@ -152,7 +152,7 @@ static void asiliant_calc_dclk2(u32 *ppixclock, u8 *dclk2_m, u8 *dclk2_n, u8 *dc
else if (m <= 1028) {
/* remember there are still only 8-bits of precision in m, so
* avoid over-optimistic error calculations */
unsigned new_error = ((Ftarget * n) - (Fref * (m & ~3))) >= 0 ?
unsigned new_error = Ftarget * n >= Fref * (m & ~3) ?
((Ftarget * n) - (Fref * (m & ~3))) : ((Fref * (m & ~3)) - (Ftarget * n));
if (new_error < best_error) {
best_n = n;