[patch] don't reset errno if no error occured

[Ulrich Drepper]

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On 07/10/2010 07:18 AM, Matthias Klose wrote:
> [reported at https://launchpad.net/bugs/598299]

This is just wrong.  Nobody must look ever at errno unless the return
value of a function call says there has been an error.  If this is not
the case errno can have any value.  Any code not expecting this is broken.

- -- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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