Input: wm97xx: Simplify resource management

Since the commit in the Fixes tag below, 'wm->input_dev' is a managed
resource that doesn't need to be explicitly unregistered or freed (see
devm_input_allocate_device() documentation)

So, remove some unless line of code to slightly simplify it.

Fixes: c72f61e74073 ("Input: wm97xx: split out touchscreen registering")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/87dce7e80ea9b191843fa22415ca3aef5f3cc2e6.1643529968.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index 78d2ee9..1b58611 100644 (file)
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -615,10 +615,9 @@ static int wm97xx_register_touch(struct wm97xx *wm)
         * extensions)
         */
        wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
-       if (!wm->touch_dev) {
-               ret = -ENOMEM;
-               goto touch_err;
-       }
+       if (!wm->touch_dev)
+               return -ENOMEM;
+
        platform_set_drvdata(wm->touch_dev, wm);
        wm->touch_dev->dev.parent = wm->dev;
        wm->touch_dev->dev.platform_data = pdata;
@@ -629,9 +628,6 @@ static int wm97xx_register_touch(struct wm97xx *wm)
        return 0;
 touch_reg_err:
        platform_device_put(wm->touch_dev);
-touch_err:
-       input_unregister_device(wm->input_dev);
-       wm->input_dev = NULL;
 
        return ret;
 }
@@ -639,8 +635,6 @@ touch_err:
 static void wm97xx_unregister_touch(struct wm97xx *wm)
 {
        platform_device_unregister(wm->touch_dev);
-       input_unregister_device(wm->input_dev);
-       wm->input_dev = NULL;
 }
 
 static int _wm97xx_probe(struct wm97xx *wm)