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authorBhanu Prakash Gollapudi <bprakash@broadcom.com>2012-01-23 18:00:46 -0800
committerJames Bottomley <JBottomley@Parallels.com>2012-02-19 08:08:58 -0600
commit2a7b29c5f267c143e280c1a5174a0d930bd6c1e3 (patch)
tree85c58f26d3eaac2cf183e765fd023d5c54d0aa41 /drivers/scsi/bnx2fc/bnx2fc_fcoe.c
parent9f71af2febd53620a379d71527f98bbc2ba67e61 (diff)
downloadblackbird-op-linux-2a7b29c5f267c143e280c1a5174a0d930bd6c1e3.tar.gz
blackbird-op-linux-2a7b29c5f267c143e280c1a5174a0d930bd6c1e3.zip
[SCSI] bnx2fc: fix panic in bnx2fc_post_io_req
System panics while accessing stale pointer - timer_work_queue - in the IO path before bnx2fc_stop is called. Fix is to destroy the workqueue after the destroy operation is complete. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/bnx2fc/bnx2fc_fcoe.c')
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_fcoe.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 8c6156a10d90..10cf5d96ce29 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -1537,6 +1537,7 @@ static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
static int bnx2fc_destroy(struct net_device *netdev)
{
struct bnx2fc_interface *interface = NULL;
+ struct workqueue_struct *timer_work_queue;
int rc = 0;
rtnl_lock();
@@ -1549,9 +1550,9 @@ static int bnx2fc_destroy(struct net_device *netdev)
goto netdev_err;
}
-
- destroy_workqueue(interface->timer_work_queue);
+ timer_work_queue = interface->timer_work_queue;
__bnx2fc_destroy(interface);
+ destroy_workqueue(timer_work_queue);
netdev_err:
mutex_unlock(&bnx2fc_dev_lock);
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