diff options
| author | Asai Thambi SP <asamymuthupa@micron.com> | 2016-02-25 08:17:47 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-03-03 19:08:43 +0300 |
| commit | 59cf70e236c96594d9f1e065755d8fce9df5356b (patch) | |
| tree | c581336d6c120a95c66c2bc1ea1a9f0fc4b011b5 /drivers/block | |
| parent | d8a18d2d8f5de55666c6011ed175939d22c8e3d8 (diff) | |
| download | linux-59cf70e236c96594d9f1e065755d8fce9df5356b.tar.xz | |
mtip32xx: Fix for rmmod crash when drive is in FTL rebuild
When FTL rebuild is in progress, alloc_disk() initializes the disk
but device node will be created by add_disk() only after successful
completion of FTL rebuild. So, skip deletion of device node in
removal path when FTL rebuild is in progress.
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/mtip32xx/mtip32xx.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 573900c073b8..4c4d13aadf77 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2968,10 +2968,8 @@ restart_eh: } if (test_bit(MTIP_PF_REBUILD_BIT, &port->flags)) { - if (mtip_ftl_rebuild_poll(dd) < 0) - set_bit(MTIP_DDF_REBUILD_FAILED_BIT, - &dd->dd_flag); - clear_bit(MTIP_PF_REBUILD_BIT, &port->flags); + if (mtip_ftl_rebuild_poll(dd) == 0) + clear_bit(MTIP_PF_REBUILD_BIT, &port->flags); } } @@ -3851,7 +3849,6 @@ static int mtip_block_initialize(struct driver_data *dd) mtip_hw_debugfs_init(dd); -skip_create_disk: memset(&dd->tags, 0, sizeof(dd->tags)); dd->tags.ops = &mtip_mq_ops; dd->tags.nr_hw_queues = 1; @@ -3881,6 +3878,7 @@ skip_create_disk: dd->disk->queue = dd->queue; dd->queue->queuedata = dd; +skip_create_disk: /* Initialize the protocol layer. */ wait_for_rebuild = mtip_hw_get_identify(dd); if (wait_for_rebuild < 0) { @@ -4041,7 +4039,8 @@ static int mtip_block_remove(struct driver_data *dd) dd->bdev = NULL; } if (dd->disk) { - del_gendisk(dd->disk); + if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag)) + del_gendisk(dd->disk); if (dd->disk->queue) { blk_cleanup_queue(dd->queue); blk_mq_free_tag_set(&dd->tags); @@ -4082,7 +4081,8 @@ 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 (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag)) + del_gendisk(dd->disk); if (dd->disk->queue) { blk_cleanup_queue(dd->queue); blk_mq_free_tag_set(&dd->tags); |