asiliantfb: fix test of unsigned in asiliant_calc_dclk2()
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>
diff --git a/drivers/video/asiliantfb.c b/drivers/video/asiliantfb.c
index 9fe90ce9..e70bc22 100644
--- a/drivers/video/asiliantfb.c
+++ b/drivers/video/asiliantfb.c
@@ -140,7 +140,7 @@
/* 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 @@
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;