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| author |   Seokmann Ju <seokmann.ju@qlogic.com> | 2009-01-22 09:45:38 -0800 |
|---|---|---|
| committer |   James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-01-25 07:59:12 -0600 |
| commit | 3c01b4f9fbb43fc911acd33ea7a14ea7a4f9866b (patch) | |
| tree | b9b80844105cdaa6b1cbbc3309de80524cc5d552 /drivers/scsi/qla2xxx | |
| parent | [SCSI] qla2xxx: Correct regression in DMA-mask setting prior to allocations. (diff) | |
| download | linux-dev-3c01b4f9fbb43fc911acd33ea7a14ea7a4f9866b.tar.xz linux-dev-3c01b4f9fbb43fc911acd33ea7a14ea7a4f9866b.zip | |
[SCSI] qla2xxx: Add checks for a valid fcport in dev-loss-tmo/terminate_rport_io callbacks.
Commit f78badb1ae07e7f8b835ab2ea0b456ed3fc4caf4 ([SCSI] fc
transport: pre-emptively terminate i/o upon dev_loss_tmo timeout)
changed the callback semantics of dev_loss_tmo and
terminate_rport_io such that repeated calls could be made. This
could result in the the driver using stale (NULLed-out, in
dev_loss_tmo) data from the rport. Correct this by addint a
simple check to ensure a valid fcport is attached.
Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/qla2xxx')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_attr.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index c7acef50d5da..33a3c13fd893 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -1016,6 +1016,9 @@ qla2x00_dev_loss_tmo_callbk(struct fc_rport *rport) struct Scsi_Host *host = rport_to_shost(rport); fc_port_t *fcport = *(fc_port_t **)rport->dd_data; + if (!fcport) + return; + qla2x00_abort_fcport_cmds(fcport); /* @@ -1033,6 +1036,9 @@ qla2x00_terminate_rport_io(struct fc_rport *rport) { fc_port_t *fcport = *(fc_port_t **)rport->dd_data; + if (!fcport) + return; + /* * At this point all fcport's software-states are cleared. Perform any * final cleanup of firmware resources (PCBs and XCBs). |