arch/powerpc/platforms/powernv/opal-elog.c: fix world-writable sysfs files

If you don't have a store function, you're not writable anyway!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com>
This commit is contained in:
Rusty Russell 2014-08-06 10:15:36 +09:30
commit 6656c21ca1