Let's revert what we did in case seomthing goes wrong and we return an error - as already done on arm64 and s390x.
Cc: Michael Ellerman <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Rashmica Gupta <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Mike Rapoport <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Oscar Salvador <[email protected]> Cc: Wei Yang <[email protected]> Signed-off-by: David Hildenbrand <[email protected]> --- arch/powerpc/mm/mem.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index c5755b9efb64..8b946ec68d1b 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -170,7 +170,10 @@ int __ref arch_add_memory(int nid, u64 start, u64 size, rc = arch_create_linear_mapping(nid, start, size, params); if (rc) return rc; - return __add_pages(nid, start_pfn, nr_pages, params); + rc = __add_pages(nid, start_pfn, nr_pages, params); + if (rc) + arch_remove_linear_mapping(start, size); + return rc; } void __ref arch_remove_memory(int nid, u64 start, u64 size, -- 2.26.2
