diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
index 7fe84bfe087858f42e933990445dc95a919955aa..46a6d1c83f7d604bae3628738105422488256f63 100644
--- a/drivers/nvdimm/pfn_devs.c
+++ b/drivers/nvdimm/pfn_devs.c
@@ -619,7 +619,7 @@ static void trim_pfn_device(struct nd_pfn *nd_pfn, u32 *start_pad, u32 *end_trun
 	if (region_intersects(start, size, IORESOURCE_SYSTEM_RAM,
 				IORES_DESC_NONE) == REGION_MIXED
 			|| !IS_ALIGNED(end, nd_pfn->align)
-			|| nd_region_conflict(nd_region, start, size + adjust))
+			|| nd_region_conflict(nd_region, start, size))
 		*end_trunc = end - phys_pmem_align_down(nd_pfn, end);
 }