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    Subject[PATCH] rtc: t reaches -1, tested 0
    With a postfix decrement t will reach -1 rather than 0,
    so the warning nor errot_out occur.

    Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
    ---
    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 @@ static int __devinit au1xtoy_rtc_probe(struct platform_device *pdev)
    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) {



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