Revision d261154057c27f6c1d256b6198b0ad08733f1758 authored by Ian Abbott on 19 May 2010, 16:22:41 UTC, committed by Greg Kroah-Hartman on 04 June 2010, 20:38:53 UTC
For write(), any data copied to the data buffer after the previously
set up streaming acquisition command has finished won't be used, but a
non-empty write() does not currently return 0 (or -EPIPE on error) after
the command has finished until the data buffer has been filled up.
Change this behavior to return 0 (or -EPIPE) any time after the command
has finished, without bothering to fill up the buffer with more useless
data.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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