dm crypt: fix write endio

Fix BIO_UPTODATE test for write io.

Cc: stable@kernel.org
Cc: dm-crypt@saout.de
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 28c6ae095c560d9377aa5e182e8b8af38de11117..30d51a0c01161f5a5adeb916892d48ebd82d3a5f 100644 (file)
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -511,6 +511,9 @@ static void crypt_endio(struct bio *clone, int error)
        struct crypt_config *cc = io->target->private;
        unsigned read_io = bio_data_dir(clone) == READ;
 
+       if (unlikely(!bio_flagged(clone, BIO_UPTODATE) && !error))
+               error = -EIO;
+
        /*
         * free the processed pages
         */
@@ -519,10 +522,8 @@ static void crypt_endio(struct bio *clone, int error)
                goto out;
        }
 
-       if (unlikely(!bio_flagged(clone, BIO_UPTODATE))) {
-               error = -EIO;
+       if (unlikely(error))
                goto out;
-       }
 
        bio_put(clone);
        kcryptd_queue_crypt(io);