The length must be given as bytes and not as 4 bit tuples.

Signed-off-by: Jonas Rabenstein <jonas.rabenst...@studium.uni-erlangen.de>
---
 block/sed-opal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/sed-opal.c b/block/sed-opal.c
index 36842bfa572e..d5f565e1557a 100644
--- a/block/sed-opal.c
+++ b/block/sed-opal.c
@@ -562,7 +562,7 @@ static void add_token_u64(int *err, struct opal_dev *cmd, 
u64 number)
        }
 
        msb = fls(number);
-       len = DIV_ROUND_UP(msb, 4);
+       len = DIV_ROUND_UP(msb, 8);
 
        if (cmd->pos >= IO_BUFFER_LENGTH - len - 1) {
                pr_debug("Error adding u64: end of buffer.\n");
-- 
2.13.6

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