[PATCH] Input: fix ptr_ret.cocci warnings

[kbuild test robot]

drivers/input/mouse/synaptics.c:279:1-3: WARNING: PTR_ERR_OR_ZERO can be used


 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

CC: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---

 synaptics.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -276,10 +276,7 @@ static int synaptics_create_intertouch(s
 	pdevinfo.parent = &psmouse->ps2dev.serio->dev;
 
 	pdev = platform_device_register_full(&pdevinfo);
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(pdev);
 }
 
 static int synaptics_remove_intertouch_device(struct device *dev, void *data)