Re: [PATCH] staging: nokia_h4: nokia_core.c: use usleep_range() instead of msleep()

[Pavel Machek]

Hi!

> So the /Documentation/timers/timers-howto.txt stats:
> 
> SLEEPING FOR ~USECS OR SMALL MSECS ( 10us - 20ms):
> * Use usleep_range
> 
> - Why not msleep for (1ms - 20ms)?
> Explained originally here:
> http://lkml.org/lkml/2007/8/3/250
> msleep(1~20) may not do what the caller intends, and
> will often sleep longer (~20 ms actual sleep for any
> value given in the 1~20ms range). In many cases this
> is not the desired behavior.
...
> Should the documentation should be ignored?

Caller wants to sleep for 10ms; docs said it may sleep for 10-20msec;
that sounds reasonable. You replaced it with busy-loop for 10-15msec.

That does not sound like improvement.

Thanks,
								Pavel

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