1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index 65cc171c721d..db2fc7c02e01 100644
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -364,9 +364,9 @@ struct device *nd_pfn_create(struct nd_region *nd_region)
 int nd_pfn_validate(struct nd_pfn *nd_pfn, const char *sig)
 {
         u64 checksum, offset;
-        unsigned long align;
         enum nd_pfn_mode mode;
         struct nd_namespace_io *nsio;
+        unsigned long align, start_pad;
         struct nd_pfn_sb *pfn_sb = nd_pfn->pfn_sb;
         struct nd_namespace_common *ndns = nd_pfn->ndns;
         const u8 *parent_uuid = nd_dev_to_uuid(&ndns->dev);
@@ -410,6 +410,7 @@ int nd_pfn_validate(struct nd_pfn *nd_pfn, const char *sig)
 
         align = le32_to_cpu(pfn_sb->align);
         offset = le64_to_cpu(pfn_sb->dataoff);
+        start_pad = le32_to_cpu(pfn_sb->start_pad);
         if (align == 0)
                 align = 1UL << ilog2(offset);
         mode = le32_to_cpu(pfn_sb->mode);
@@ -468,7 +469,7 @@ int nd_pfn_validate(struct nd_pfn *nd_pfn, const char *sig)
                 return -EBUSY;
         }
 
-        if ((align && !IS_ALIGNED(offset, align))
+        if ((align && !IS_ALIGNED(nsio->res.start + offset + start_pad, align))
                         || !IS_ALIGNED(offset, PAGE_SIZE)) {
                 dev_err(&nd_pfn->dev,
                                 "bad offset: %#llx dax disabled align: %#lx\n",