On Fri, Oct 02, 2015 at 11:11:18AM -0700, Dmitry Torokhov wrote:
> Hi Sudip,
>
> On Fri, Oct 02, 2015 at 04:58:33PM +0530, Sudip Mukherjee wrote:
> > The variable i is used to check the port to attach to and we are
> > supposed to save the reference of struct db9 in the location given by
> > db9_base[i]. But after finding out the index i is getting modified again
> > so we saved in a wrong index.
> >
> > Fixes: 2260c419b52b ("Input: db9 - use parallel port device model")
> > Signed-off-by: Sudip Mukherjee <sudip@xxxxxxxxxxxxxxx>
> > ---
> > drivers/input/joystick/db9.c | 6 ++++--
> > 1 file changed, 4 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
> > index cf1f602..f6ecd4a 100644
> > --- a/drivers/input/joystick/db9.c
> > +++ b/drivers/input/joystick/db9.c
> > @@ -560,7 +560,7 @@ static void db9_attach(struct parport *pp)
> > const struct db9_mode_data *db9_mode;
> > struct pardevice *pd;
> > struct input_dev *input_dev;
> > - int i, j;
> > + int i, j, k;
> > int mode;
> > struct pardev_cb db9_parport_cb;
> >
> > @@ -577,6 +577,7 @@ static void db9_attach(struct parport *pp)
> > pr_debug("Not using parport%d.\n", pp->number);
> > return;
> > }
> > + k = i;
>
> Hmm, I'd prefer we did not reuse 'i' at all. Can we instead of 'k' add
> 'port_idx' and use it instead of 'i' in the first loop?
Yes, that will be great. This reuse of i caused this mistake. Sorry
about that I should have been more carefull.
regards
sudip
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