commit bc34496d63ec0a669d6825ea42275fd6fcbe9969
author Roel Kluin <roel.kluin@gmail.com> Sun Feb 01 16:54:19 2009 -0800
committer Dmitry Torokhov <dmitry.torokhov@gmail.com> Sun Feb 01 16:58:07 2009 -0800
tree f2035768ce6f8e307add8da626a5f629f2034545
parent 4e8718a1f960db0c48427f4583f89f4cb62f2480

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>

drivers/input/mouse/pxa930_trkball.c

diff --git a/drivers/input/mouse/pxa930_trkball.c b/drivers/input/mouse/pxa930_trkball.c
index a0f45c4..784be69 100644
--- a/drivers/input/mouse/pxa930_trkball.c
+++ b/drivers/input/mouse/pxa930_trkball.c
@@ -83,7 +83,7 @@
 
 	__raw_writel(v, trkball->mmio_base + TBCR);
 
-	while (i--) {
+	while (--i) {
 		if (__raw_readl(trkball->mmio_base + TBCR) == v)
 			break;
 		msleep(1);