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m68k: cnt reaches -1, not 0

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With the postfix decrement cnt reaches -1 rather than 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Roel Kluin 2009-06-17 13:13:57 -07:00 committed by Geert Uytterhoeven
parent dac9ff79a8
commit dd9b3e84f2
1 changed files with 4 additions and 2 deletions
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6
arch/m68k/amiga/config.c
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@ -574,10 +574,11 @@ static int a2000_hwclk(int op, struct rtc_time *t)
tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD; tod_2000.cntrl1 = TOD2000_CNTRL1_HOLD;
while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) { while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt) {
tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
udelay(70); udelay(70);
tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
--cnt;
} }
if (!cnt) if (!cnt)
@ -649,10 +650,11 @@ static int amiga_set_clock_mmss(unsigned long nowtime)
tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt--) { while ((tod_2000.cntrl1 & TOD2000_CNTRL1_BUSY) && cnt) {
tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD; tod_2000.cntrl1 &= ~TOD2000_CNTRL1_HOLD;
udelay(70); udelay(70);
tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD; tod_2000.cntrl1 |= TOD2000_CNTRL1_HOLD;
--cnt;
} }
if (!cnt) if (!cnt)