linux-bl808/drivers/scsi/mpt3sas
Sreekanth Reddy 6d3a56ed09 scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk
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 <Sreekanth.Reddy@broadcom.com>
Cc: <stable@vger.kernel.org> # v4.4+
Fixes: 7786ab6aff ("mpt3sas: Ported WarpDrive product SSS6200 support")
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-11-01 13:31:22 -04:00
..
mpi
Kconfig
Makefile
mpt3sas_base.c SCSI misc on 20161006 2016-10-07 09:28:53 -07:00
mpt3sas_base.h mpt3sas: Eliminate dead sleep_flag code 2016-08-08 21:13:48 -04:00
mpt3sas_config.c mpt3sas: Fix warnings exposed by W=1 2016-08-08 21:15:32 -04:00
mpt3sas_ctl.c mpt3sas: Fix warnings exposed by W=1 2016-08-08 21:15:32 -04:00
mpt3sas_ctl.h
mpt3sas_debug.h
mpt3sas_scsih.c scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk 2016-11-01 13:31:22 -04:00
mpt3sas_transport.c mpt3sas: Fix warnings exposed by W=1 2016-08-08 21:15:32 -04:00
mpt3sas_trigger_diag.c
mpt3sas_trigger_diag.h
mpt3sas_warpdrive.c