rtc: t reaches -1, tested 0
With a postfix decrement t will reach -1 rather than 0, so neither the
warning nor the `goto error_out' will occur.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/rtc-au1xxx.c b/drivers/rtc/rtc-au1xxx.c
index 8906a68..979ed04 100644
--- a/drivers/rtc/rtc-au1xxx.c
+++ b/drivers/rtc/rtc-au1xxx.c
@@ -81,7 +81,7 @@
if (au_readl(SYS_TOYTRIM) != 32767) {
/* wait until hardware gives access to TRIM register */
t = 0x00100000;
- while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T0S) && t--)
+ while ((au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T0S) && --t)
msleep(1);
if (!t) {