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Subjectquestion on common error-handling idiom

There's something I've been wondering about for a while. There is a lot of code
in linux that looks something like this:


err = -ERRORCODE
if (error condition)
goto out;

While nice to read, it would seem that it might be more efficient to do the
following:

if (error condition) {
err = -ERRORCODE;
goto out;
}

Is there any particular reason why the former is preferred? Is the compiler
smart enough to optimize away the additional write in the non-error path?

Chris
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