[SCSI] qla2xxx: Clear options-flags while issuing stop-firmware mbx command.

Not clearing the options flags in mbx1 could lead the firmware
into interpreting old data in mbx1 through mbx8.  This could
lead to inadvertent DMA read/write operations to stale memory.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 34344d3..8635722 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -2581,7 +2581,8 @@ qla2x00_stop_firmware(scsi_qla_host_t *vha)
        ql_dbg(ql_dbg_mbx, vha, 0x10a1, "Entered %s.\n", __func__);
 
        mcp->mb[0] = MBC_STOP_FIRMWARE;
-       mcp->out_mb = MBX_0;
+       mcp->mb[1] = 0;
+       mcp->out_mb = MBX_1|MBX_0;
        mcp->in_mb = MBX_0;
        mcp->tov = 5;
        mcp->flags = 0;