powerpc/kdump: handle crashkernel memory reservation failure

[Michael Ellerman]

On Thu, 2018-06-28 at 05:19:56 UTC, Hari Bathini wrote:
> Memory reservation for crashkernel could fail if there are holes around
> kdump kernel offset (128M). Fail gracefully in such cases and print an
> error message.
> 
> Signed-off-by: Hari Bathini <hbathini at linux.ibm.com>
> Tested-by: David Gibson <dgibson at redhat.com>
> Reviewed-by: Dave Young <dyoung at redhat.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/8950329c4a64c6d3ca0bc34711a1af

cheers