fbdev: newport: newport_*wait() return 0 on timeout
With a postfix decrement t reaches -1 on timeout which results in a return of 0. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -453,7 +453,7 @@ static __inline__ int newport_wait(struct newport_regs *regs)
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{
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{
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int t = BUSY_TIMEOUT;
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int t = BUSY_TIMEOUT;
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while (t--)
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while (--t)
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if (!(regs->cset.status & NPORT_STAT_GBUSY))
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if (!(regs->cset.status & NPORT_STAT_GBUSY))
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break;
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break;
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return !t;
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return !t;
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@ -463,7 +463,7 @@ static __inline__ int newport_bfwait(struct newport_regs *regs)
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{
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{
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int t = BUSY_TIMEOUT;
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int t = BUSY_TIMEOUT;
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while (t--)
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while (--t)
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if(!(regs->cset.status & NPORT_STAT_BBUSY))
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if(!(regs->cset.status & NPORT_STAT_BBUSY))
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break;
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break;
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return !t;
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return !t;
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