staging: comedi: c6xdigio: remove unnecessary c6xdigio_pwmo_insn_read()

The pwm subdevice in this driver sets the subdev_flags to SDF_WRITEABLE
so the s->insn_read callback is not needed. Since this callback simply
outputs a printk(KERN_DEBUG ... message jsut remove it.

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

diff --git a/drivers/staging/comedi/drivers/c6xdigio.c b/drivers/staging/comedi/drivers/c6xdigio.c
index 217aa19..a85b949 100644 (file)
--- a/drivers/staging/comedi/drivers/c6xdigio.c
+++ b/drivers/staging/comedi/drivers/c6xdigio.c
@@ -322,14 +322,6 @@ static void C6X_encResetAll(unsigned long baseAddr)
        }
 }
 
-static int c6xdigio_pwmo_insn_read(struct comedi_device *dev,
-                                  struct comedi_subdevice *s,
-                                  struct comedi_insn *insn, unsigned int *data)
-{
-       printk(KERN_DEBUG "c6xdigio_pwmo_insn_read %x\n", insn->n);
-       return insn->n;
-}
-
 static int c6xdigio_pwmo_insn_write(struct comedi_device *dev,
                                    struct comedi_subdevice *s,
                                    struct comedi_insn *insn,
@@ -426,7 +418,6 @@ static int c6xdigio_attach(struct comedi_device *dev,
        s->subdev_flags = SDF_WRITEABLE;
        s->n_chan = 2;
        /*      s->trig[0] = c6xdigio_pwmo; */
-       s->insn_read = c6xdigio_pwmo_insn_read;
        s->insn_write = c6xdigio_pwmo_insn_write;
        s->maxdata = 500;
        s->range_table = &range_bipolar10;      /*  A suitable lie */