[Libvir] Remove useless "if (foo)" before "free (foo)".

Daniel P. Berrange berrange at redhat.com
Tue Jan 22 21:57:19 UTC 2008

On Tue, Jan 22, 2008 at 10:48:22PM +0100, Jim Meyering wrote:
> Likewise, given if (foo != NULL) free (foo); remove the useless "if" test.
> Do the same for sexpr_free, since it has similar semantics.
> Detect with this:
> (-0x3b tells Perl to use ';' as the input record separator)
>   perl -0x3b -ne '/\b(if \((.+?)(?:\s*!=\s*NULL\s*)?\)\s+(sexpr_)?free *\(\2\))/s and print "$ARGV: $1\n"'\ $(git ls-files)
> Note that it also changes the code produced by generator.py.
> This is just a heads-up.
> Before committing it, I will add a rule using something like
> the above to help avoid regressions.
> BTW, there is some very misleading indentation in the vicinity
> of some of these changes, but I didn't correct any of that.

I gave it a once-over and it looks correct to me.

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