In function pm8001_dev_gone_notify require a tag from bitmap resource and later 
don't free tag resource .So tag resource will be consume fully and following 
request can not be execed because of lack of tags . But in the function don't 
need use any tag to issue command of unregistering device .

Signed-off-by: XinHong Zhu <[email protected]>
---
 drivers/scsi/pm8001/pm8001_sas.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index f50ac44..ba3088c 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -865,13 +865,11 @@ ex_err:
 static void pm8001_dev_gone_notify(struct domain_device *dev)
 {
        unsigned long flags = 0;
-       u32 tag;
        struct pm8001_hba_info *pm8001_ha;
        struct pm8001_device *pm8001_dev = dev->lldd_dev;
 
        pm8001_ha = pm8001_find_ha_by_dev(dev);
        spin_lock_irqsave(&pm8001_ha->lock, flags);
-       pm8001_tag_alloc(pm8001_ha, &tag);
        if (pm8001_dev) {
                u32 device_id = pm8001_dev->device_id;
 
-- 
1.7.9


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