mailbox: skip complete wait event if timer expired
If a wait_for_completion_timeout() call returns due to a timeout, complete() can get called after returning from the wait which is incorrect and can cause subsequent transmissions on a channel to fail. Since the wait_for_completion_timeout() sees the completion variable is non-zero caused by the erroneous/spurious complete() call, and it immediately returns without waiting for the time as expected by the client. This patch fixes the issue by skipping complete() call for the timer expiry. Fixes: 2b6d83e2 ("mailbox: Introduce framework for mailbox") Reported-by: NAlexey Klimov <alexey.klimov@arm.com> Signed-off-by: NSudeep Holla <sudeep.holla@arm.com> Signed-off-by: NJassi Brar <jaswinder.singh@linaro.org>
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