staging: comedi: s626: don't dereference insn->data
authorIan Abbott <abbotti@mev.co.uk>
Mon, 24 Sep 2012 16:20:52 +0000 (17:20 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 7 Oct 2012 15:27:24 +0000 (08:27 -0700)
commit99f7fee77c389d4531e8cda9dbff60a60bdeea28
tree57806d3137e51b27fd33d977303a13f57d298eb9
parentbf26fa2be290083dd4da788d3af33a48d02af75e
staging: comedi: s626: don't dereference insn->data

commit b655c2c4782ed3e2e71d2608154e295a3e860311 upstream.

`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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/s626.c