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Subject[PATCH] scsi: libsas: Grab the host lock in sas_ata_device_link_abort()
Date
Grab the host lock in sas_ata_device_link_abort() before calling
ata_link_abort(), as the comment in ata_link_abort() mentions.

Signed-off-by: Xingui Yang <yangxingui@huawei.com>
---
drivers/scsi/libsas/sas_ata.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index f7439bf9cdc6..4f2017b21e6d 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -889,7 +889,9 @@ void sas_ata_device_link_abort(struct domain_device *device, bool force_reset)
{
struct ata_port *ap = device->sata_dev.ap;
struct ata_link *link = &ap->link;
+ unsigned long flags;

+ spin_lock_irqsave(ap->lock, flags);
device->sata_dev.fis[2] = ATA_ERR | ATA_DRDY; /* tf status */
device->sata_dev.fis[3] = ATA_ABORTED; /* tf error */

@@ -897,6 +899,7 @@ void sas_ata_device_link_abort(struct domain_device *device, bool force_reset)
if (force_reset)
link->eh_info.action |= ATA_EH_RESET;
ata_link_abort(link);
+ spin_unlock_irqrestore(ap->lock, flags);
}
EXPORT_SYMBOL_GPL(sas_ata_device_link_abort);

--
2.17.1
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