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scsi: qedf: Check for port type and role before processing an event 

The rport lock gets initialized during offload. If a non-FCP or non-target
rport got logout then this rport will be uninitialized. KASAN was
complaining because of it.

=========
[   14.384434] the code is fine but needs lockdep annotation.
[   14.384482] turning off the locking correctness validator.
========

Link: https://lore.kernel.org/r/20200807110656.19965-2-jhasan@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Saurav Kashyap 2020-08-07 04:06:50 -07:00 committed by Martin K. Petersen
parent 68bdb3db6c
commit a521bbc38d
1 changed files with 11 additions and 0 deletions
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11
drivers/scsi/qedf/qedf_main.c
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@ -1558,6 +1558,17 @@ static void qedf_rport_event_handler(struct fc_lport *lport,
if (port_id == FC_FID_DIR_SERV)
break;
if (rdata->spp_type != FC_TYPE_FCP) {
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
"No action since spp type isn't FCP\n");
break;
}
if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
"Not FCP target so no action\n");
break;
}
if (!rport) {
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
"port_id=%x - rport notcreated Yet!!\n", port_id);