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Input: pxa930_trkball - fix write timeout handling
author
Roel Kluin
<roel.kluin@gmail.com>
Mon, 2 Feb 2009 00:54:19 +0000
(16:54 -0800)
committer
Dmitry Torokhov
<dmitry.torokhov@gmail.com>
Mon, 2 Feb 2009 00:58:07 +0000
(16:58 -0800)
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>
drivers/input/mouse/pxa930_trkball.c
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diff --git
a/drivers/input/mouse/pxa930_trkball.c
b/drivers/input/mouse/pxa930_trkball.c
index
a0f45c4
..
784be69
100644
(file)
--- a/
drivers/input/mouse/pxa930_trkball.c
+++ b/
drivers/input/mouse/pxa930_trkball.c
@@
-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);