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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-05 15:32:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-05 15:32:53 -0700
commitcd3f07d1e6e59fade92a8edaff9315cc534199cf (patch)
treea2f30bccdfad1826a81c098c6766c2a4345fc171 /drivers/scsi/device_handler/scsi_dh.c
parentdc822e57ee05856291a8c9324d2309076ee5f5e2 (diff)
parentf7c9c6bb14f3104608a3a83cadea10a6943d2804 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (45 commits) [SCSI] Fix block queue and elevator memory leak in scsi_alloc_sdev [SCSI] scsi_dh_alua: Fix the time inteval for alua rtpg commands [SCSI] scsi_transport_iscsi: Fix documentation os parameter [SCSI] mv_sas: OCZ RevoDrive3 & zDrive R4 support [SCSI] libfc: improve flogi retries to avoid lport stuck [SCSI] libfc: avoid exchanges collision during lport reset [SCSI] libfc: fix checking FC_TYPE_BLS [SCSI] edd: Treat "XPRS" host bus type the same as "PCI" [SCSI] isci: overriding max_concurr_spinup oem parameter by max(oem, user) [SCSI] isci: revert bcn filtering [SCSI] isci: Fix hard reset timeout conditions. [SCSI] isci: No need to manage the pending reset bit on pending requests. [SCSI] isci: Remove redundant isci_request.ttype field. [SCSI] isci: Fix task management for SMP, SATA and on dev remove. [SCSI] isci: No task_done callbacks in error handler paths. [SCSI] isci: Handle task request timeouts correctly. [SCSI] isci: Fix tag leak in tasks and terminated requests. [SCSI] isci: Immediately fail I/O to removed devices. [SCSI] isci: Lookup device references through requests in completions. [SCSI] ipr: add definitions for additional adapter ...
Diffstat (limited to 'drivers/scsi/device_handler/scsi_dh.c')
-rw-r--r--drivers/scsi/device_handler/scsi_dh.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c
index 7c05fd9dccfd..339ea23a8675 100644
--- a/drivers/scsi/device_handler/scsi_dh.c
+++ b/drivers/scsi/device_handler/scsi_dh.c
@@ -441,7 +441,15 @@ int scsi_dh_activate(struct request_queue *q, activate_complete fn, void *data)
spin_lock_irqsave(q->queue_lock, flags);
sdev = q->queuedata;
- if (sdev && sdev->scsi_dh_data)
+ if (!sdev) {
+ spin_unlock_irqrestore(q->queue_lock, flags);
+ err = SCSI_DH_NOSYS;
+ if (fn)
+ fn(data, err);
+ return err;
+ }
+
+ if (sdev->scsi_dh_data)
scsi_dh = sdev->scsi_dh_data->scsi_dh;
dev = get_device(&sdev->sdev_gendev);
if (!scsi_dh || !dev ||