4.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Sreekanth Reddy <[email protected]> commit 6d3a56ed098566bc83d6c2afa74b4199c12ea074 upstream. While merging mpt3sas & mpt2sas code, we added the is_warpdrive check condition on the wrong line --------------------------------------------------------------------------- scsih_target_alloc(struct scsi_target *starget) sas_target_priv_data->handle = raid_device->handle; sas_target_priv_data->sas_address = raid_device->wwid; sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME; - raid_device->starget = starget; + sas_target_priv_data->raid_device = raid_device; + if (ioc->is_warpdrive) + raid_device->starget = starget; } spin_unlock_irqrestore(&ioc->raid_device_lock, flags); return 0; ------------------------------------------------------------------------------ That check should be for the line sas_target_priv_data->raid_device = raid_device; Due to above hunk, we are not initializing raid_device's starget for raid volumes, and so during raid disk deletion driver is not calling scsi_remove_target() API as driver observes starget field of raid_device's structure as NULL. Signed-off-by: Sreekanth Reddy <[email protected]> Fixes: 7786ab6aff9 ("mpt3sas: Ported WarpDrive product SSS6200 support") Signed-off-by: Martin K. Petersen <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1275,9 +1275,9 @@ scsih_target_alloc(struct scsi_target *s sas_target_priv_data->handle = raid_device->handle; sas_target_priv_data->sas_address = raid_device->wwid; sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME; - sas_target_priv_data->raid_device = raid_device; if (ioc->is_warpdrive) - raid_device->starget = starget; + sas_target_priv_data->raid_device = raid_device; + raid_device->starget = starget; } spin_unlock_irqrestore(&ioc->raid_device_lock, flags); return 0;
