mtip32xx: Remove dfs_parent after pci unregister

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>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 51628eb6f445ef695df2e7cf8ce6fd8d64ea6f3d..27641bc83962e782476bca0988484f04d9c85538 100644 (file)
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -4939,13 +4939,13 @@ 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");