[PATCH] powerpc/pseries: fix oops in hotplug memory notifier

[Michael Ellerman]

On Fri, 2019-06-07 at 05:04:07 UTC, Nathan Lynch wrote:
> During post-migration device tree updates, we can oops in
> pseries_update_drconf_memory if the source device tree has an
> ibm,dynamic-memory-v2 property and the destination has a
> ibm,dynamic_memory (v1) property. The notifier processes an "update"
> for the ibm,dynamic-memory property but it's really an add in this
> scenario. So make sure the old property object is there before
> dereferencing it.
> 
> Signed-off-by: Nathan Lynch <nathanl at linux.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/0aa82c482ab2ece530a6f44897b63b27

cheers