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Input: ambakmi - fix timeout handling in amba_kmi_write()

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With a postfix decrement timeleft reaches -1 rather than 0,
but after the loop it is tested to have become 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Roel Kluin 2009-02-01 16:55:45 -08:00 committed by Dmitry Torokhov
parent bc34496d63
commit 4ab73761fa
1 changed files with 1 additions and 1 deletions
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2
drivers/input/serio/ambakmi.c
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@ -57,7 +57,7 @@ static int amba_kmi_write(struct serio *io, unsigned char val)
struct amba_kmi_port *kmi = io->port_data;
unsigned int timeleft = 10000; /* timeout in 100ms */
while ((readb(KMISTAT) & KMISTAT_TXEMPTY) == 0 && timeleft--)
while ((readb(KMISTAT) & KMISTAT_TXEMPTY) == 0 && --timeleft)
udelay(10);
if (timeleft)