Prev: [PATCH 1/3] memstick: init sysfs attributes
Next: vmscan: isolated_lru_pages() stop neighbor search if neighbor can't be isolated
From: Maxim Levitsky on 5 Aug 2010 11:30
mspro_block_remove is called from detect thread that first calls
the mspro_block_stop, which stops the request queue.
If we call del_gendisk with queue stopped we get a deadlock.


Signed-off-by: Maxim Levitsky <maximlevitsky(a)gmail.com>
---
drivers/memstick/core/mspro_block.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index 369313f..300ec15 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -1331,13 +1331,14 @@ static void mspro_block_remove(struct memstick_dev *card)
struct mspro_block_data *msb = memstick_get_drvdata(card);
unsigned long flags;

- del_gendisk(msb->disk);
- dev_dbg(&card->dev, "mspro block remove\n");
spin_lock_irqsave(&msb->q_lock, flags);
msb->eject = 1;
blk_start_queue(msb->queue);
spin_unlock_irqrestore(&msb->q_lock, flags);

+ del_gendisk(msb->disk);
+ dev_dbg(&card->dev, "mspro block remove\n");
+
blk_cleanup_queue(msb->queue);
msb->queue = NULL;

--
1.7.0.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
 | 
Pages: 1
Prev: [PATCH 1/3] memstick: init sysfs attributes
Next: vmscan: isolated_lru_pages() stop neighbor search if neighbor can't be isolated