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authorJeff Skirvin <jeffrey.d.skirvin@intel.com>2011-03-05 01:06:38 +0300
committerDan Williams <dan.j.williams@intel.com>2011-07-03 14:55:29 +0400
commit18d3d72a42a846d46b71131982c51d63eba2b7b3 (patch)
treea1ce9f03bc358c26750bcd4068a8168e3f13e2c4 /drivers/scsi/isci/task.c
parent5409bc3a20b239d1b3919db451ee4f6513e64ed1 (diff)
downloadlinux-18d3d72a42a846d46b71131982c51d63eba2b7b3.tar.xz
isci: isci_request_cleanup_completed_loiterer checks task before task_done
In the condition where outstanding I/Os are being cleaned from the device requests in process list, the cleanup function needs to check that the request is actually a sas-task and not a task management function. Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/scsi/isci/task.c')
-rw-r--r--drivers/scsi/isci/task.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c
index 98204b031649..779f6cfba6be 100644
--- a/drivers/scsi/isci/task.c
+++ b/drivers/scsi/isci/task.c
@@ -631,13 +631,16 @@ static void isci_request_cleanup_completed_loiterer(
struct isci_remote_device *isci_device,
struct isci_request *isci_request)
{
- struct sas_task *task = isci_request_access_task(isci_request);
- unsigned long flags;
+ struct sas_task *task;
+ unsigned long flags;
+
+ task = (isci_request->ttype == io_task)
+ ? isci_request_access_task(isci_request)
+ : NULL;
dev_dbg(&isci_host->pdev->dev,
"%s: isci_device=%p, request=%p, task=%p\n",
- __func__, isci_device, isci_request,
- isci_request->ttype_ptr.io_task_ptr);
+ __func__, isci_device, isci_request, task);
spin_lock_irqsave(&isci_host->scic_lock, flags);
list_del_init(&isci_request->dev_node);