misc: hisi_hikey_usb: use PTR_ERR_OR_ZERO

Coccinelle suggested using PTR_ERR_OR_ZERO() and looking at the code,
we can use PTR_ERR_OR_ZERO() instead of checking IS_ERR() and then
doing 'return 0'.

Tested-by: Lukas Bulwahn <[e-mail]>
Signed-off-by: Sudip Mukherjee <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/misc/hisi_hikey_usb.c

···
 
 	hisi_hikey_usb->reset = devm_gpiod_get(&pdev->dev, "hub_reset_en_gpio",
 					       GPIOD_OUT_HIGH);
-	if (IS_ERR(hisi_hikey_usb->reset))
-		return PTR_ERR(hisi_hikey_usb->reset);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hisi_hikey_usb->reset);
 }
 
 static int hisi_hikey_usb_probe(struct platform_device *pdev)