[PATCH] use correct ccr bit for syscall error status

[Nathan Lynch]

On Fri, 2010-03-12 at 12:26 -0600, Nathan Lynch wrote:
> The powerpc implementations of syscall_get_error and
> syscall_set_return_value should use CCR0:S0 (0x10000000) for testing
> and setting syscall error status.  Fortunately these APIs don't seem
> to be used at the moment.

I'll be sending this to the powerpc maintainer as well, so hopefully we
don't have to carry it for too long.