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abe9a3006f
If an operation already has an error result recorded, don't overwrite it with a new error code. In order to ensure a request completes exactly once, return a Boolean indicating whether setting the result was successful. If two threads are racing to complete an operation (for example if a slow-but-normal response message arrives at the same time timeout processing commences) only the one that sets the final result will finish its activity. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Greg Kroah-Hartman <greg@kroah.com> |
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