On 09/12/2007 12:15 AM, Adrian McMenamin wrote:
On 11/09/2007, Rene Herman <[email protected]> wrote:
On 09/12/2007 12:05 AM, Adrian McMenamin wrote:
OK, why does this line occasionally return true:
if ((maple_dev->interval > 0) && (jiffies >maple_dev->when))
while this one never does (no other changes made):
if ((maple_dev->interval > 0) && (time_after(jiffies, maple_dev->when)))
Is maple_dev->when an unsigned long?
Yes. Does that make a difference?
If it had been a signed type, it could've wrapped to something you didn't
expect, explaining the difference at least...
With an unsigned long, the only diference should be that time_after() deals
with jiffie wrapping which I assume is not an actual problem here. I'll
retreat into the shades again... ;-(
Rene.
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