redonkable/alistair23-linux
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[SCSI] qla2xxx: Clear options-flags while issuing stop-firmware mbx command.

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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>
This commit is contained in:
Andrew Vasquez 2012-02-09 11:14:06 -08:00 committed by James Bottomley
parent d051a5aa1c
commit 4ba988db8d
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/qla2xxx/qla_mbx.c
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@ -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;