pps: generators: tio: fix platform_set_drvdata()

platform_set_drvdata() is setting a double pointer to struct pps_tio as
driver_data, which will point to the local stack of probe function instead
of intended data. Set driver_data correctly and fix illegal memory access
by its user.

 BUG: unable to handle page fault for address: ffffc9000117b738
 RIP: 0010:hrtimer_active+0x2b/0x60
 Call Trace:
  ? hrtimer_active+0x2b/0x60
  hrtimer_cancel+0x19/0x50
  pps_gen_tio_remove+0x1e/0x80 [pps_gen_tio]

Fixes: c89755d ("pps: generators: Add PPS Generator TIO Driver")
Signed-off-by: Raag Jadav <[email protected]>
Acked-by: Rodolfo Giometti <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: raagjadav

drivers/pps/generators/pps_gen_tio.c

@@ -230,7 +230,7 @@ static int pps_gen_tio_probe(struct platform_device *pdev)
 	hrtimer_setup(&tio->timer, hrtimer_callback, CLOCK_REALTIME,
 		      HRTIMER_MODE_ABS);
 	spin_lock_init(&tio->lock);
-	platform_set_drvdata(pdev, &tio);
+	platform_set_drvdata(pdev, tio);
 
 	return 0;
 }