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 <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index e1d10f366c2f..430e26b9e344 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));