1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/w1/w1_io.c b/drivers/w1/w1_io.c
index 0d15b0eaf79a..5139c25ca962 100644
--- a/drivers/w1/w1_io.c
+++ b/drivers/w1/w1_io.c
@@ -356,7 +356,9 @@ int w1_reset_select_slave(struct w1_slave *sl)
                 w1_write_8(sl->master, W1_SKIP_ROM);
         else {
                 u8 match[9] = {W1_MATCH_ROM, };
-                memcpy(&match[1], (u8 *)&sl->reg_num, 8);
+                u64 rn = le64_to_cpu(*((u64*)&sl->reg_num));
+
+                memcpy(&match[1], &rn, 8);
                 w1_write_block(sl->master, match, 9);
         }
         return 0;