diff --git a/block/bdev.c b/block/bdev.c
index 4628dcb1da8a..80ce9e10828e 100644
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -839,8 +839,9 @@ struct bdev_handle *bdev_open_by_dev(dev_t dev, blk_mode_t mode, void *holder,
 		return ERR_PTR(-ENOMEM);
 	bdev = blkdev_get_by_dev(dev, mode, holder, hops);
 	if (IS_ERR(bdev)) {
+		printk("%p, %s\n", handle, __func__);
 		kfree(handle);
-		return ERR_CAST(bdev);
+		return NULL;
 	}
 	handle->bdev = bdev;
 	handle->holder = holder;
@@ -949,6 +950,7 @@ EXPORT_SYMBOL(blkdev_put);
 
 void bdev_release(struct bdev_handle *handle)
 {
+	printk("%p, %s\n", handle, __func__);
 	blkdev_put(handle->bdev, handle->holder);
 	kfree(handle);
 }
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index c911d838b8ec..098bf3330590 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1062,12 +1062,14 @@ int lmLogOpen(struct super_block *sb)
 	struct jfs_log *log;
 	struct jfs_sb_info *sbi = JFS_SBI(sb);
 
+	printk("%p, %s\n", sb, __func__);
 	if (sbi->flag & JFS_NOINTEGRITY)
 		return open_dummy_log(sb);
 
 	if (sbi->mntflag & JFS_INLINELOG)
 		return open_inline_log(sb);
 
+	printk("%p, %s\n", sb, __func__);
 	mutex_lock(&jfs_log_mutex);
 	list_for_each_entry(log, &jfs_external_logs, journal_list) {
 		if (log->bdev_handle->bdev->bd_dev == sbi->logdev) {
@@ -1102,7 +1104,8 @@ int lmLogOpen(struct super_block *sb)
 
 	bdev_handle = bdev_open_by_dev(sbi->logdev,
 			BLK_OPEN_READ | BLK_OPEN_WRITE, log, NULL);
-	if (IS_ERR(bdev_handle)) {
+	printk("%p, %s\n", bdev_handle, __func__);
+	if (IS_ERR_OR_NULL(bdev_handle)) {
 		rc = PTR_ERR(bdev_handle);
 		goto free;
 	}
@@ -1141,6 +1144,7 @@ int lmLogOpen(struct super_block *sb)
 	lbmLogShutdown(log);
 
       close:		/* close external log device */
+	printk("%p, %p, %s\n", log, bdev_handle, __func__);
 	bdev_release(bdev_handle);
 
       free:		/* free log descriptor */
@@ -1163,6 +1167,7 @@ static int open_inline_log(struct super_block *sb)
 
 	set_bit(log_INLINELOG, &log->flag);
 	log->bdev_handle = sb->s_bdev_handle;
+	printk("%p, %s\n", log->bdev_handle, __func__);
 	log->base = addressPXD(&JFS_SBI(sb)->logpxd);
 	log->size = lengthPXD(&JFS_SBI(sb)->logpxd) >>
 	    (L2LOGPSIZE - sb->s_blocksize_bits);
@@ -1485,6 +1490,7 @@ int lmLogClose(struct super_block *sb)
 	bdev_handle = log->bdev_handle;
 	rc = lmLogShutdown(log);
 
+	printk("%p, %p, %s\n", log, bdev_handle, __func__);
 	bdev_release(bdev_handle);
 
 	kfree(log);
@@ -2113,6 +2119,7 @@ static void lbmStartIO(struct lbuf * bp)
 
 	jfs_info("lbmStartIO");
 
+	printk("%p, %s\n", log->bdev_handle, __func__);
 	bio = bio_alloc(log->bdev_handle->bdev, 1, REQ_OP_WRITE | REQ_SYNC,
 			GFP_NOFS);
 	bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
diff --git a/fs/super.c b/fs/super.c
index 79f8125da573..e157e260f9e4 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1652,6 +1652,7 @@ void kill_block_super(struct super_block *sb)
 	generic_shutdown_super(sb);
 	if (bdev) {
 		sync_blockdev(bdev);
+		printk("%p, %s\n", sb->s_bdev_handle, __func__);
 		bdev_release(sb->s_bdev_handle);
 	}
 }