powerpc/kdump: Handle crashkernel memory reservation failure
Hari Bathini authored
[ Upstream commit 8950329c

 ]

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: default avatarHari Bathini <hbathini@linux.ibm.com>
Tested-by: default avatarDavid Gibson <dgibson@redhat.com>
Reviewed-by: default avatarDave Young <dyoung@redhat.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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