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scsi: scsi_dh_alua: fix missing kref_put() in alua_rtpg_work() 

Reference count of pg leaks in alua_rtpg_work() since kref_put() is not
called to decrease the reference count of pg when the condition
pg->rtpg_sdev==NULL satisfied (actually it is easy to satisfy), it would
cause memory of pg leakage.

Signed-off-by: tang.junhui <tang.junhui@zte.com.cn>
Cc: <stable@vger.kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
tang.junhui 2016-10-28 15:54:07 +08:00 committed by Martin K. Petersen
parent 2bf7dc8443
commit 1fdd14279e
1 changed files with 1 additions and 0 deletions
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1
drivers/scsi/device_handler/scsi_dh_alua.c
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@ -793,6 +793,7 @@ static void alua_rtpg_work(struct work_struct *work)
WARN_ON(pg->flags & ALUA_PG_RUN_RTPG);
WARN_ON(pg->flags & ALUA_PG_RUN_STPG);
spin_unlock_irqrestore(&pg->lock, flags);
kref_put(&pg->kref, release_port_group);
return;
}
if (pg->flags & ALUA_SYNC_STPG)