Input: turbografx - store object in correct index

The variable i is used to check the port to attach to and we are
supposed to save the reference of struct tgfx in the location given by
tgfx_base[i]. But after finding out the index, i is getting modified
again so we saved in a wrong index.

Fixes: 4de27a638a99 ("Input: turbografx - use parallel port device model")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 11 insertions, 9 deletions

diff --git a/drivers/input/joystick/turbografx.c b/drivers/input/joystick/turbografx.c
index 01e8ea92b9ad..9f5bca26bd2f 100644
--- a/drivers/input/joystick/turbografx.c
+++ b/drivers/input/joystick/turbografx.c
@@ -162,27 +162,29 @@ static void tgfx_attach(struct parport *pp)
         struct tgfx *tgfx;
         struct input_dev *input_dev;
         struct pardevice *pd;
-        int i, j;
+        int i, j, port_idx;
         int *n_buttons, n_devs;
         struct pardev_cb tgfx_parport_cb;
 
-        for (i = 0; i < TGFX_MAX_PORTS; i++) {
-                if (tgfx_cfg[i].nargs == 0 || tgfx_cfg[i].args[0] < 0)
+        for (port_idx = 0; port_idx < TGFX_MAX_PORTS; port_idx++) {
+                if (tgfx_cfg[port_idx].nargs == 0 ||
+                    tgfx_cfg[port_idx].args[0] < 0)
                         continue;
-                if (tgfx_cfg[i].args[0] == pp->number)
+                if (tgfx_cfg[port_idx].args[0] == pp->number)
                         break;
         }
 
-        if (i == TGFX_MAX_PORTS) {
+        if (port_idx == TGFX_MAX_PORTS) {
                 pr_debug("Not using parport%d.\n", pp->number);
                 return;
         }
-        n_buttons = tgfx_cfg[i].args + 1;
-        n_devs = tgfx_cfg[i].nargs - 1;
+        n_buttons = tgfx_cfg[port_idx].args + 1;
+        n_devs = tgfx_cfg[port_idx].nargs - 1;
 
         tgfx_parport_cb.flags = PARPORT_FLAG_EXCL;
 
-        pd = parport_register_dev_model(pp, "turbografx", &tgfx_parport_cb, i);
+        pd = parport_register_dev_model(pp, "turbografx", &tgfx_parport_cb,
+                                        port_idx);
         if (!pd) {
                 pr_err("parport busy already - lp.o loaded?\n");
                 return;
@@ -250,7 +252,7 @@ static void tgfx_attach(struct parport *pp)
                 goto err_free_tgfx;
         }
 
-        tgfx_base[i] = tgfx;
+        tgfx_base[port_idx] = tgfx;
         return;
 
  err_free_dev: