1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 08a3c324242e..60fcef1593dd 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -316,7 +316,7 @@ static void ttm_bo_vm_close(struct vm_area_struct *vma)
 
 static int ttm_bo_vm_access_kmap(struct ttm_buffer_object *bo,
                                  unsigned long offset,
-                                 void *buf, int len, int write)
+                                 uint8_t *buf, int len, int write)
 {
         unsigned long page = offset >> PAGE_SHIFT;
         unsigned long bytes_left = len;
@@ -345,6 +345,7 @@ static int ttm_bo_vm_access_kmap(struct ttm_buffer_object *bo,
                 ttm_bo_kunmap(&map);
 
                 page++;
+                buf += bytes;
                 bytes_left -= bytes;
                 offset = 0;
         } while (bytes_left);