UBI: fix buffer padding

Instead of correctly pad the buffer wich we are writing to the
eraseblock during update, we used weird construct:

memset(buf + len, 0xFF, len - len);

Fix this.

Signed-off-by: Kyungmin Park <kmpark@infradead.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c
index ddaa1a56cc69..6fa1ab3f2a70 100644
--- a/drivers/mtd/ubi/upd.c
+++ b/drivers/mtd/ubi/upd.c
@@ -237,10 +237,10 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
         int err;
 
         if (vol->vol_type == UBI_DYNAMIC_VOLUME) {
-                len = ALIGN(len, ubi->min_io_size);
-                memset(buf + len, 0xFF, len - len);
+                int l = ALIGN(len, ubi->min_io_size);
 
-                len = ubi_calc_data_len(ubi, buf, len);
+                memset(buf + len, 0xFF, l - len);
+                len = ubi_calc_data_len(ubi, buf, l);
                 if (len == 0) {
                         dbg_msg("all %d bytes contain 0xFF - skip", len);
                         return 0;