greybus: introduce gb_operation_request_send_sync()

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Define a new function used to initiate a synchronous operation.
It sends the operation request message and doesn't return until
the response has been received and/or the operation's result
has been set.

This gets rid of the convention that a null callback pointer
signifies a synchronous operation.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

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Alex Elder 2014-12-03 08:35:09 -06:00 • committed by Greg Kroah-Hartman

parent 4afb7fd015

commit c25572ca94

4 changed files with 26 additions and 12 deletions

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2

drivers/staging/greybus/i2c-gb.c

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33

drivers/staging/greybus/operation.c

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1

drivers/staging/greybus/operation.h

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2

drivers/staging/greybus/usb-gb.c

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