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[PATCH 3/6] aic94xx: remove the SAS host after the SCSI host

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After commit bcdde7e ("sysfs: make __sysfs_remove_dir() recursive") changed the
removal path of kernfs to make it recursive we have to remove the SAS host
before the SCSI host or we will see sysfs warnings on not found sysfs groups for
kobjects.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 drivers/scsi/aic94xx/aic94xx_init.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 662b232..362d65a 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -701,13 +701,20 @@ static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
 
 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
 {
+	struct Scsi_Host *shost = asd_ha->sas_ha.core.shost;
+	unsigned long flags;
 	int err;
 
-	scsi_remove_host(asd_ha->sas_ha.core.shost);
+	spin_lock_irqsave(shost->host_lock, flags);
+	if (scsi_host_set_state(shost, SHOST_CANCEL))
+		WARN_ON(scsi_host_set_state(shost, SHOST_CANCEL_RECOVERY));
+	spin_unlock_irqrestore(shost->host_lock, flags);
+
 	err = sas_unregister_ha(&asd_ha->sas_ha);
 
-	sas_remove_host(asd_ha->sas_ha.core.shost);
-	scsi_host_put(asd_ha->sas_ha.core.shost);
+	sas_remove_host(shost);
+	scsi_remove_host(shost);
+	scsi_host_put(shost);
 
 	kfree(asd_ha->sas_ha.sas_phy);
 	kfree(asd_ha->sas_ha.sas_port);
-- 
1.8.5.6

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[PATCH 0/2] Fix sysfs recursive removal splats in isci Johannes Thumshirn <jthumshirn@suse.de> - 2017-03-29 11:50 +0200
  [PATCH 3/6] aic94xx: remove the SAS host after the SCSI host Johannes Thumshirn <jthumshirn@suse.de> - 2017-03-29 11:50 +0200
    Re: [PATCH 3/6] aic94xx: remove the SAS host after the SCSI host Hannes Reinecke <hare@suse.de> - 2017-03-29 12:20 +0200
  [PATCH 5/6] mvsas: remove the SAS host after the SCSI host Johannes Thumshirn <jthumshirn@suse.de> - 2017-03-29 11:50 +0200
    Re: [PATCH 5/6] mvsas: remove the SAS host after the SCSI host Hannes Reinecke <hare@suse.de> - 2017-03-29 12:20 +0200
  [PATCH 2/2] scsi: isci: remove the SAS host after the SCSI host Johannes Thumshirn <jthumshirn@suse.de> - 2017-03-29 11:50 +0200
    Re: [PATCH 2/2] scsi: isci: remove the SAS host after the SCSI host Hannes Reinecke <hare@suse.de> - 2017-03-29 12:20 +0200
  [PATCH 6/6] scsi: pm8001: remove the SAS host after the SCSI host Johannes Thumshirn <jthumshirn@suse.de> - 2017-03-29 11:50 +0200
    Re: [PATCH 6/6] scsi: pm8001: remove the SAS host after the SCSI host Hannes Reinecke <hare@suse.de> - 2017-03-29 12:20 +0200
    Re: [PATCH 6/6] scsi: pm8001: remove the SAS host after the SCSI host Jinpu Wang <jinpu.wang@profitbricks.com> - 2017-03-29 12:30 +0200
      Re: [PATCH 6/6] scsi: pm8001: remove the SAS host after the SCSI host Hannes Reinecke <hare@suse.de> - 2017-03-29 12:40 +0200
  Re: [PATCH 0/2] Fix sysfs recursive removal splats in isci James Bottomley <jejb@linux.vnet.ibm.com> - 2017-03-29 13:40 +0200
  Re: [PATCH 0/2] Fix sysfs recursive removal splats in isci Tejun Heo <tj@kernel.org> - 2017-03-29 17:30 +0200

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