Commit fbfce5c5 authored Nov 12, 2019 by Xiang Chen Committed by Greg Kroah-Hartman Jun 07, 2020

scsi: hisi_sas: Check sas_port before using it

[ Upstream commit 8c39673d5474b95374df2104dc1f65205c5278b8 ]

Need to check the structure sas_port before using it.

Link: https://lore.kernel.org/r/1573551059-107873-2-git-send-email-john.garry@huawei.com


Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent f13a4453

drivers/scsi/hisi_sas/hisi_sas_main.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -789,12 +789,13 @@ static void hisi_sas_port_notify_formed(struct asd_sas_phy *sas_phy)
		struct hisi_hba *hisi_hba = sas_ha->lldd_ha;
		struct hisi_sas_phy *phy = sas_phy->lldd_phy;
		struct asd_sas_port *sas_port = sas_phy->port;
		struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
		struct hisi_sas_port *port;
		unsigned long flags;

		if (!sas_port)
		return;

		port = to_hisi_sas_port(sas_port);
		spin_lock_irqsave(&hisi_hba->lock, flags);
		port->port_attached = 1;
		port->id = phy->port_id;