[GIT PULL] SCSI fixes for 5.2-rc6

[James Bottomley]

One simple fix for a driver use after free.

The patch is available here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes

The short changelog is:

Jan Kara (1):
      scsi: vmw_pscsi: Fix use-after-free in pvscsi_queue_lck()

And the diffstat:

 drivers/scsi/vmw_pvscsi.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

With full diff below.

James

---

diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index ecee4b3ff073..377b07b2feeb 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -763,6 +763,7 @@ static int pvscsi_queue_lck(struct scsi_cmnd *cmd, void 
(*done)(struct scsi_cmnd
        struct pvscsi_adapter *adapter = shost_priv(host);
        struct pvscsi_ctx *ctx;
        unsigned long flags;
+       unsigned char op;
 
        spin_lock_irqsave(&adapter->hw_lock, flags);
 
@@ -775,13 +776,14 @@ static int pvscsi_queue_lck(struct scsi_cmnd *cmd, void 
(*done)(struct scsi_cmnd
        }
 
        cmd->scsi_done = done;
+       op = cmd->cmnd[0];
 
        dev_dbg(&cmd->device->sdev_gendev,
-               "queued cmd %p, ctx %p, op=%x\n", cmd, ctx, cmd->cmnd[0]);
+               "queued cmd %p, ctx %p, op=%x\n", cmd, ctx, op);
 
        spin_unlock_irqrestore(&adapter->hw_lock, flags);
 
-       pvscsi_kick_io(adapter, cmd->cmnd[0]);
+       pvscsi_kick_io(adapter, op);
 
        return 0;
 }