diff --git a/mm/migrate_device.c b/mm/migrate_device.c
index 009bfa8b212d..0c437004329d 100644
--- a/mm/migrate_device.c
+++ b/mm/migrate_device.c
@@ -1398,9 +1398,9 @@ static unsigned long migrate_device_pfn_lock(unsigned long pfn)
  * @start: starting pfn in the range to migrate.
  * @npages: number of pages to migrate.
  *
- * migrate_vma_setup() is similar in concept to migrate_vma_setup() except that
- * instead of looking up pages based on virtual address mappings a range of
- * device pfns that should be migrated to system memory is used instead.
+ * migrate_device_range() is similar in concept to migrate_vma_setup(), except
+ * that instead of looking up pages based on virtual address mappings, a range
+ * of device pfns that should be migrated to system memory is used.
  *
  * This is useful when a driver needs to free device memory but doesn't know the
  * virtual mappings of every page that may be in device memory. For example this