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Input: pxa930_trkball - fix write timeout handling 

With a postfix decrement i reaches -1 rather than 0,
but after the loop it is tested whether it has become 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
hifive-unleashed-5.1
Roel Kluin 2009-02-01 16:54:19 -08:00 committed by Dmitry Torokhov
parent 4e8718a1f9
commit bc34496d63
1 changed files with 1 additions and 1 deletions
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2
drivers/input/mouse/pxa930_trkball.c
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@ -83,7 +83,7 @@ static int write_tbcr(struct pxa930_trkball *trkball, int v)
__raw_writel(v, trkball->mmio_base + TBCR);
while (i--) {
while (--i) {
if (__raw_readl(trkball->mmio_base + TBCR) == v)
break;
msleep(1);