[SCSI] SCSI core: fix leakage of scsi_cmnd's
Actually, just one problem and one cosmetic fix:
1) We need to dequeue for the loop and kill case (it seems easiest
simply to dequeue in the scsi_kill_request() routine)
2) There's no real need to drop the queue lock. __scsi_done() is lock
agnostic, so since there's no requirement, let's just leave it in to
avoid any locking issues.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 003f8cf..d8d9848 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1370,7 +1370,8 @@
{
struct scsi_cmnd *cmd = req->special;
- spin_unlock(q->queue_lock);
+ blkdev_dequeue_request(req);
+
if (unlikely(cmd == NULL)) {
printk(KERN_CRIT "impossible request in %s.\n",
__FUNCTION__);
@@ -1381,7 +1382,6 @@
cmd->result = DID_NO_CONNECT << 16;
atomic_inc(&cmd->device->iorequest_cnt);
__scsi_done(cmd);
- spin_lock(q->queue_lock);
}
/*
@@ -1432,7 +1432,6 @@
if (unlikely(!scsi_device_online(sdev))) {
printk(KERN_ERR "scsi%d (%d:%d): rejecting I/O to offline device\n",
sdev->host->host_no, sdev->id, sdev->lun);
- blkdev_dequeue_request(req);
scsi_kill_request(req, q);
continue;
}
