1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c
index 7cd99b1f8596..75bc08c6838c 100644
--- a/drivers/nvdimm/core.c
+++ b/drivers/nvdimm/core.c
@@ -421,14 +421,15 @@ static void set_badblock(struct badblocks *bb, sector_t s, int num)
 static void __add_badblock_range(struct badblocks *bb, u64 ns_offset, u64 len)
 {
         const unsigned int sector_size = 512;
-        sector_t start_sector;
+        sector_t start_sector, end_sector;
         u64 num_sectors;
         u32 rem;
 
         start_sector = div_u64(ns_offset, sector_size);
-        num_sectors = div_u64_rem(len, sector_size, &rem);
+        end_sector = div_u64_rem(ns_offset + len, sector_size, &rem);
         if (rem)
-                num_sectors++;
+                end_sector++;
+        num_sectors = end_sector - start_sector;
 
         if (unlikely(num_sectors > (u64)INT_MAX)) {
                 u64 remaining = num_sectors;