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);