[PATCH] Set error if callback returned < 0

[Poul-Henning Kamp]

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In message <CAJV_h0bd=+qHJD-VLUTJeGxY56hM7LLnzO1Y=FpnZU_8BLn8Qw at mail.gmail.com>, Federico Schwindt writes:
>--001a113d6772d274e4051fb05120

>True but I didn't want to do lots of changes considering the time (of the
>release cycle).

>If that's OK I will submit a new patch.

I think it's ok.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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