diff options
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/block.c | 17 | ||||
| -rw-r--r-- | drivers/mmc/core/queue.c | 2 |
2 files changed, 14 insertions, 5 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index ccfa98af1dd3..e44f6d90aeb4 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -189,7 +189,7 @@ static void mmc_blk_put(struct mmc_blk_data *md) md->usage--; if (md->usage == 0) { int devidx = mmc_get_devidx(md->disk); - blk_cleanup_queue(md->queue.queue); + blk_put_queue(md->queue.queue); ida_simple_remove(&mmc_blk_ida, devidx); put_disk(md->disk); kfree(md); @@ -2156,6 +2156,17 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card, md->queue.blkdata = md; + /* + * Keep an extra reference to the queue so that we can shutdown the + * queue (i.e. call blk_cleanup_queue()) while there are still + * references to the 'md'. The corresponding blk_put_queue() is in + * mmc_blk_put(). + */ + if (!blk_get_queue(md->queue.queue)) { + mmc_cleanup_queue(&md->queue); + goto err_putdisk; + } + md->disk->major = MMC_BLOCK_MAJOR; md->disk->first_minor = devidx * perdev_minors; md->disk->fops = &mmc_bdops; @@ -2471,10 +2482,6 @@ static void mmc_blk_remove_req(struct mmc_blk_data *md) * from being accepted. */ card = md->queue.card; - spin_lock_irq(md->queue.queue->queue_lock); - queue_flag_set(QUEUE_FLAG_BYPASS, md->queue.queue); - spin_unlock_irq(md->queue.queue->queue_lock); - blk_set_queue_dying(md->queue.queue); mmc_cleanup_queue(&md->queue); if (md->disk->flags & GENHD_FL_UP) { device_remove_file(disk_to_dev(md->disk), &md->force_ro); diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index 26f8da30ebe5..ae6d9da68735 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -268,6 +268,8 @@ void mmc_cleanup_queue(struct mmc_queue *mq) blk_start_queue(q); spin_unlock_irqrestore(q->queue_lock, flags); + blk_cleanup_queue(q); + mq->card = NULL; } |