From: Asai Thambi SP <asamymuthupa@xxxxxxxxxx>
This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 02b48265e7437bfe153af16337b14ee74f00905f ]
put_disk() need to be called after del_gendisk() to free the disk object structure.
Signed-off-by: Selvan Mani <smani@xxxxxxxxxx>
Signed-off-by: Asai Thambi S P <asamymuthupa@xxxxxxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
drivers/block/mtip32xx/mtip32xx.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 8ae2bd1..9a85213 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2813,6 +2813,7 @@ static int mtip_free_orphan(struct driver_data *dd)
kobject_put(kobj);
}
del_gendisk(dd->disk);
+ put_disk(dd->disk);
dd->disk = NULL;
}
if (dd->queue) {
@@ -4102,13 +4103,13 @@ static int mtip_block_remove(struct driver_data *dd)
dd->bdev = NULL;
}
if (dd->disk) {
+ del_gendisk(dd->disk);
if (dd->disk->queue) {
- del_gendisk(dd->disk);
blk_cleanup_queue(dd->queue);
blk_mq_free_tag_set(&dd->tags);
dd->queue = NULL;
- } else
- put_disk(dd->disk);
+ }
+ put_disk(dd->disk);
}
dd->disk = NULL;
@@ -4147,12 +4148,12 @@ static int mtip_block_shutdown(struct driver_data *dd)
dev_info(&dd->pdev->dev,
"Shutting down %s ...\n", dd->disk->disk_name);
+ del_gendisk(dd->disk);
if (dd->disk->queue) {
- del_gendisk(dd->disk);
blk_cleanup_queue(dd->queue);
blk_mq_free_tag_set(&dd->tags);
- } else
- put_disk(dd->disk);
+ }
+ put_disk(dd->disk);
dd->disk = NULL;
dd->queue = NULL;
}
--
2.5.0
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