scsi: qla2xxx: Fix NULL pointer access for fcport structure
when processing iocb in a timeout case, driver was trying to log messages without verifying if the fcport structure could have valid data. This results in a NULL pointer access. Fixes: 726b85487067("qla2xxx: Add framework for async fabric discovery") Signed-off-by: Quinn Tran <quinn.tran@cavium.com> Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -102,11 +102,16 @@ qla2x00_async_iocb_timeout(void *data)
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struct srb_iocb *lio = &sp->u.iocb_cmd;
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struct event_arg ea;
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ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
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"Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
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sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
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if (fcport) {
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ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
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"Async-%s timeout - hdl=%x portid=%06x %8phC.\n",
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sp->name, sp->handle, fcport->d_id.b24, fcport->port_name);
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fcport->flags &= ~FCF_ASYNC_SENT;
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fcport->flags &= ~FCF_ASYNC_SENT;
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} else {
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pr_info("Async-%s timeout - hdl=%x.\n",
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sp->name, sp->handle);
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}
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switch (sp->type) {
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case SRB_LOGIN_CMD:
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