[PATCH 3.10 10/46] mtip32xx: Remove dfs_parent after pci unregister

Greg Kroah-Hartman
2014-07-04T22:33:35Z

From: Asai Thambi S P <asamymuthupa@micron.com>

commit af5ded8ccf21627f9614afc03b356712666ed225 upstream.

In module exit, dfs_parent and it's subtree were removed before
unregistering with pci. When debugfs entry for each device is attempted
to remove in pci_remove() context, they don't exist, as dfs_parent and
its children were already ripped apart.

Modified to first unregister with pci and then remove dfs_parent.

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/block/mtip32xx/mtip32xx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -4784,13 +4784,13 @@ static int __init mtip_init(void)
*/
static void __exit mtip_exit(void)
{
- debugfs_remove_recursive(dfs_parent);
-
/* Release the allocated major block device number. */
unregister_blkdev(mtip_major, MTIP_DRV_NAME);

/* Unregister the PCI driver. */
pci_unregister_driver(&mtip_pci_driver);
+
+ debugfs_remove_recursive(dfs_parent);
}

MODULE_AUTHOR("Micron Technology, Inc");