powerpc/fadump: provide a helpful error message
authorHari Bathini <hbathini@linux.vnet.ibm.com>
Thu, 1 Jun 2017 17:22:10 +0000 (22:52 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 28 Jun 2017 03:08:10 +0000 (13:08 +1000)
commita5a05b91c7f36c180c32e27fa41890957c31bad1
treeaf3dca0d310b839c7c2d8ec480447d99be780de5
parenteae0dfcc44320c79a05637534d59af4643b2ee7b
powerpc/fadump: provide a helpful error message

fadump fails to register when there are holes in boot memory area.
Provide a helpful error message to the user in such case.

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/fadump.c