[PATCH for-next 1/2] book3s64/radix : Handle error conditions properly in radix_vmemmap_populate

[Donet Tom]

Error conditions are not handled properly if altmap is not present
and PMD_SIZE vmemmap_alloc_block_buf fails.

In this patch, if vmemmap_alloc_block_buf fails in the non-altmap
case, we will fall back to the base mapping.

Signed-off-by: Donet Tom <donet...@linux.ibm.com>
---
 arch/powerpc/mm/book3s64/radix_pgtable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c 
b/arch/powerpc/mm/book3s64/radix_pgtable.c
index 9f764bc42b8c..3d67aee8c8ca 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -1173,7 +1173,7 @@ int __meminit radix__vmemmap_populate(unsigned long 
start, unsigned long end, in
                                vmemmap_set_pmd(pmd, p, node, addr, next);
                                pr_debug("PMD_SIZE vmemmap mapping\n");
                                continue;
-                       } else if (altmap) {
+                       } else {
                                /*
                                 * A vmemmap block allocation can fail due to
                                 * alignment requirements and we trying to align
-- 
2.48.1