[PATCH v4 1/2] powerpc/eeh: fix pseries_eeh_configure_bridge()

[Nathan Lynch]

Sam Bobroff <sbobroff at linux.ibm.com> writes:
> If a device is hot unplgged during EEH recovery, it's possible for the
> RTAS call to ibm,configure-pe in pseries_eeh_configure() to return
> parameter error (-3), however negative return values are not checked
> for and this leads to an infinite loop.
>
> Fix this by correctly bailing out on negative values.

Reviewed-by: Nathan Lynch <nathanl at linux.ibm.com>

Thanks.