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scsi: qla4xxx: fix a potential NULL pointer dereference 

In case iscsi_lookup_endpoint fails, the fix returns -EINVAL to avoid NULL
pointer dereference.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Kangjie Lu 2019-03-14 01:30:59 -05:00 committed by Martin K. Petersen
parent b6554cfe09
commit fba1bdd2a9
1 changed files with 2 additions and 0 deletions
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2
drivers/scsi/qla4xxx/ql4_os.c
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@ -3203,6 +3203,8 @@ static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session,
if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
return -EINVAL;
ep = iscsi_lookup_endpoint(transport_fd);
if (!ep)
return -EINVAL;
conn = cls_conn->dd_data;
qla_conn = conn->dd_data;
qla_conn->qla_ep = ep->dd_data;