greybus: cancel operation on timeout

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If an operation times out, we need to cancel whatever message it
has in-flight.  Do that instead of completing the operation, in the
timeout handler.  When the in-flight request message is canceled its
completion function will lead to the proper completion of the
operation.

Change gb_operation_cancel() so it takes the errno that it's
supposed to assign as the result of the operation.

Note that we want to preserve the original -ETIMEDOUT error, so
don't overwrite the operation result value if it has already been
set.

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

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Alex Elder 2014-11-21 19:29:17 -06:00 • committed by Greg Kroah-Hartman

parent 0e3d0e8fad

commit f68c05c021

3 changed files with 8 additions and 16 deletions

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2

drivers/staging/greybus/connection.c

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19

drivers/staging/greybus/operation.c

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3

drivers/staging/greybus/operation.h

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