3 files changed, 22 insertions, 7 deletions

diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index ab89278a56bf..697aacafb02a 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -103,9 +103,15 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
                 return -EINVAL;
         }
 
+        if (((uint32_t)ti->len) & (chunk_size - 1)) {
+                ti->error = "dm-stripe: Target length not divisible by "
+                    "chunk size";
+                return -EINVAL;
+        }
+
         width = ti->len;
         if (sector_div(width, stripes)) {
-                ti->error = "dm-stripe: Target length not divisable by "
+                ti->error = "dm-stripe: Target length not divisible by "
                     "number of stripes";
                 return -EINVAL;
         }
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index e9adeb9d172f..745ca1f67b14 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -849,10 +849,16 @@ static struct mapped_device *alloc_dev(unsigned int minor, int persistent)
 
 static void free_dev(struct mapped_device *md)
 {
-        free_minor(md->disk->first_minor);
+        unsigned int minor = md->disk->first_minor;
+
+        if (md->suspended_bdev) {
+                thaw_bdev(md->suspended_bdev, NULL);
+                bdput(md->suspended_bdev);
+        }
         mempool_destroy(md->tio_pool);
         mempool_destroy(md->io_pool);
         del_gendisk(md->disk);
+        free_minor(minor);
         put_disk(md->disk);
         blk_put_queue(md->queue);
         kfree(md);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index d39f584cd8b3..5d88329e3c7a 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -306,6 +306,7 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int
         r1bio_t * r1_bio = (r1bio_t *)(bio->bi_private);
         int mirror, behind = test_bit(R1BIO_BehindIO, &r1_bio->state);
         conf_t *conf = mddev_to_conf(r1_bio->mddev);
+        struct bio *to_put = NULL;
 
         if (bio->bi_size)
                 return 1;
@@ -323,6 +324,7 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int
                  * this branch is our 'one mirror IO has finished' event handler:
                  */
                 r1_bio->bios[mirror] = NULL;
+                to_put = bio;
                 if (!uptodate) {
                         md_error(r1_bio->mddev, conf->mirrors[mirror].rdev);
                         /* an I/O failed, we can't clear the bitmap */
@@ -375,7 +377,7 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int
                         /* Don't dec_pending yet, we want to hold
                          * the reference over the retry
                          */
-                        return 0;
+                        goto out;
                 }
                 if (test_bit(R1BIO_BehindIO, &r1_bio->state)) {
                         /* free extra copy of the data pages */
@@ -392,10 +394,11 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int
                 raid_end_bio_io(r1_bio);
         }
 
-        if (r1_bio->bios[mirror]==NULL)
-                bio_put(bio);
-
         rdev_dec_pending(conf->mirrors[mirror].rdev, conf->mddev);
+ out:
+        if (to_put)
+                bio_put(to_put);
+
         return 0;
 }
 
@@ -857,7 +860,7 @@ static int make_request(request_queue_t *q, struct bio * bio)
         atomic_set(&r1_bio->remaining, 0);
         atomic_set(&r1_bio->behind_remaining, 0);
 
-        do_barriers = bio->bi_rw & BIO_RW_BARRIER;
+        do_barriers = bio_barrier(bio);
         if (do_barriers)
                 set_bit(R1BIO_Barrier, &r1_bio->state);