diff options
| author | Quinn Tran <quinn.tran@cavium.com> | 2017-12-28 12:33:09 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-21 12:05:46 +0100 |
| commit | 84f1972c3c5d581d629985afae552723a7d69153 (patch) | |
| tree | ca62bed611166a4e3f4a191d65a1ba29cea9bdbb /drivers | |
| parent | 1675cbb32906a74e1c1dc1670049e3d7a0c75233 (diff) | |
scsi: qla2xxx: Fix NULL pointer access for fcport structure
commit 5c25d451163cab9be80744cbc5448d6b95ab8d1a upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_init.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 6082389f25c3..7b44a2c68a45 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -102,11 +102,16 @@ qla2x00_async_iocb_timeout(void *data) struct srb_iocb *lio = &sp->u.iocb_cmd; struct event_arg ea; - ql_dbg(ql_dbg_disc, fcport->vha, 0x2071, - "Async-%s timeout - hdl=%x portid=%06x %8phC.\n", - sp->name, sp->handle, fcport->d_id.b24, fcport->port_name); + if (fcport) { + ql_dbg(ql_dbg_disc, fcport->vha, 0x2071, + "Async-%s timeout - hdl=%x portid=%06x %8phC.\n", + sp->name, sp->handle, fcport->d_id.b24, fcport->port_name); - fcport->flags &= ~FCF_ASYNC_SENT; + fcport->flags &= ~FCF_ASYNC_SENT; + } else { + pr_info("Async-%s timeout - hdl=%x.\n", + sp->name, sp->handle); + } switch (sp->type) { case SRB_LOGIN_CMD: |