Merge tag 'iwlwifi-for-kalle-2016-04-12_2' of https://git.kernel.org/pub/scm/linux...

[cascardo/linux.git] / arch / powerpc / mm / mem.c

diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index f078a1f..ac79dbd 100644 (file)
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -119,12 +119,18 @@ int arch_add_memory(int nid, u64 start, u64 size, bool for_device)
        struct zone *zone;
        unsigned long start_pfn = start >> PAGE_SHIFT;
        unsigned long nr_pages = size >> PAGE_SHIFT;
+       int rc;
 
        pgdata = NODE_DATA(nid);
 
        start = (unsigned long)__va(start);
-       if (create_section_mapping(start, start + size))
-               return -EINVAL;
+       rc = create_section_mapping(start, start + size);
+       if (rc) {
+               pr_warning(
+                       "Unable to create mapping for hot added memory 0x%llx..0x%llx: %d\n",
+                       start, start + size, rc);
+               return -EFAULT;
+       }
 
        /* this should work for most non-highmem platforms */
        zone = pgdata->node_zones +