mtd: blktrans: do blk_cleanup_queue when it is really safe to do so

I was calling it in del_mtd_blktrans_dev, but ->request_fn could
still be running at that point, thus defer this call
to blktrans_dev_release

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index e32c49cb4005..03e19c1965cc 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -32,6 +32,7 @@ void blktrans_dev_release(struct kref *kref)
                 container_of(kref, struct mtd_blktrans_dev, ref);
 
         dev->disk->private_data = NULL;
+        blk_cleanup_queue(dev->rq);
         put_disk(dev->disk);
         list_del(&dev->list);
         kfree(dev);
@@ -423,7 +424,6 @@ int del_mtd_blktrans_dev(struct mtd_blktrans_dev *old)
         old->rq->queuedata = NULL;
         blk_start_queue(old->rq);
         spin_unlock_irqrestore(&old->queue_lock, flags);
-        blk_cleanup_queue(old->rq);
 
         /* Ask trans driver for release to the mtd device */
         mutex_lock(&old->lock);