updates for CFQ oops fix
- add a comment to the device structure that the device_busy field
is now protected by the request_queue->queue_lock
- null out sdev->request_queue after the queue is released to trap
any (and there shouldn't be any) use after the queue is freed.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 134d3a3..e75ee46 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -171,6 +171,9 @@
if (sdev->request_queue) {
sdev->request_queue->queuedata = NULL;
scsi_free_queue(sdev->request_queue);
+ /* temporary expedient, try to catch use of queue lock
+ * after free of sdev */
+ sdev->request_queue = NULL;
}
scsi_target_reap(scsi_target(sdev));