greybus: loopback: Wait for all async operations to complete on exit

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On gb_loopback_connection_exit() we should ensure every issued asynchronous
operation completes before exiting connection_exit(). This patch introduces
a waitqueue with a counter which represents the number of incomplete
asynchronous operations. When the counter reaches zero connection_exit()
will complete. At the point which we wait for outstanding operations to
complete the connection-specific loopback thread will have ceased to issue
new operations. Tested with both synchronous and asynchronous operations.

Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Suggested-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

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Bryan O'Donoghue 2015-12-11 13:46:52 +00:00 • committed by Greg Kroah-Hartman

parent c7aae4e613

commit 36f241fff4

1 changed files with 15 additions and 0 deletions

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drivers/staging/greybus/loopback.c

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