commit: b655c2c4782ed3e2e71d2608154e295a3e860311
From: Ian Abbott <[email protected]>
Date: Mon, 24 Sep 2012 17:20:52 +0100
Subject: staging: comedi: s626: don't dereference insn->data

`s626_enc_insn_config()` is incorrectly dereferencing `insn->data` which
is a pointer to user memory.  It should be dereferencing the separate
`data` parameter that points to a copy of the data in kernel memory.

Signed-off-by: Ian Abbott <[email protected]>
Reviewed-by: H Hartley Sweeten <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/staging/comedi/drivers/s626.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c 
b/drivers/staging/comedi/drivers/s626.c
index e1d10f3..430e26b 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1825,7 +1825,7 @@ static int s626_enc_insn_config(struct comedi_device *dev,
        /*   (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
 
        k->SetMode(dev, k, Setup, TRUE);
-       Preload(dev, k, *(insn->data));
+       Preload(dev, k, data[0]);
        k->PulseIndex(dev, k);
        SetLatchSource(dev, k, valueSrclatch);
        k->SetEnable(dev, k, (uint16_t) (enab != 0));
-- 
1.7.3.4
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