Re: [Qemu-devel] [PATCH] error: error_setg_errno(): errno gets preserved

[Markus Armbruster]

Sascha Silbe <address@hidden> writes:

> C11 allows errno to be clobbered by pretty much any library function
> call, so in general callers need to take care to save errno before
> calling other functions.
>
> However, for error reporting functions this is rather awkward and can
> make the code on the caller side more complicated than
> necessary. error_setg_errno() already takes care of preserving errno
> and some functions rely on that, so just promise that we continue to
> do so in the future.
>
> Signed-off-by: Sascha Silbe <address@hidden>

Reviewed-by: Markus Armbruster <address@hidden>